Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
1,039 results · page 3 of 21
Jul 22, 2026An issue in ZipGenius Team ZipGenius v.6.3.2.3116 and before allows a remote attacker to escalate privileges and execute arbitrary code via the zipgenius.exe.CVE-2025-50330 · Other software · reported by MITREHigh 8.8
An issue in ZipGenius Team ZipGenius v.6.3.2.3116 and before allows a remote attacker to escalate privileges and execute arbitrary code via the zipgenius.exe.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comzipgenius.it
Jul 22, 2026BandiZip v.7.37 is affected by a Authentication Bypass Vulnerability.CVE-2025-50325 · Other software · reported by MITREMedium 5.4
BandiZip v.7.37 is affected by a Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of BandiZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorden.bandisoft.comen.bandisoft.com
Jul 22, 2026An issue in OhSoft CoffeeZip v4.8.0.0 allows attackers to execute arbitrary code via downloading and executing a crafted archive file.CVE-2025-44090 · Other software · reported by MITREHigh 8.8
An issue in OhSoft CoffeeZip v4.8.0.0 allows attackers to execute arbitrary code via downloading and executing a crafted archive file.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026An issue in NCH Software ExpressZip v11.29 allows attackers to execute arbitrary code via downloading and executing a crafted archive file.CVE-2025-44089 · Other software · reported by MITREHigh 8.8
An issue in NCH Software ExpressZip v11.29 allows attackers to execute arbitrary code via downloading and executing a crafted archive file.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 22, 2026fflate through 0.8.2 is vulnerable to denial of service via an infinite loop in unzipSync().CVE-2026-45820 · Other software · 101arrowz · reported by 22e2d327-25fe-45d7-9f0c-dcd23b7108dfMedium 6.6
fflate through 0.8.2 is vulnerable to denial of service via an infinite loop in unzipSync(). A crafted ZIP archive with a central directory entry declaring compressed_size=0xFFFFFFFF (ZIP64 sentinel) but missing the required ZIP64 extra field tag 0x0001 causes z64e() to loop indefinitely due to out-of-bounds reads returning undefined, which coerces to 0, keeping the loop condition permanently true.
- Product
- fflate
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 21, 2026A signed integer overflow vulnerability was found in libarchive's ZIP writer.CVE-2026-16517 · Other software · Red Hat · reported by Red HatLow 2.9
A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.
- Product
- Red Hat Enterprise Linux 10
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comaccess.redhat.com
Jul 17, 2026pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files.CVE-2026-44722 · Other software · danifus · reported by GitHubMedium 6.2
pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files. Prior to 0.4.0, a Python operator precedence bug in pyzipper/zipfile_aes.py caused the AE-2 format to never be automatically selected during encryption, causing encrypted entries to be written in AE-1 format and exposing the plaintext CRC32 checksum in the ZIP header and, for unseekable zip archives, in the datadescripter section, allowing an attacker who possesses the archive to brute-force candidate plaintexts for small or low-entropy files by comparing CRC32 values. This issue is fixed in version 0.4.0.
- Product
- pyzipper
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 15, 2026Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer.CVE-2026-61449 · Other software · getgrav · reported by VulnCheckHigh 7.1
Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding system.gpm.archive.max_uncompressed_size before extraction. Because this declared size is attacker-forgeable and is not cross-checked against the actual inflated stream, a crafted archive declaring tiny per-entry sizes passes the cap while extractTo() writes the real, much larger content, filling disk or exhausting inodes. The archive must be supplied by a package source or admin upload (admin/operator trust). Fixed in 2.0.2. This is an incomplete fix for GHSA-928x-9mpw-8h56.
- Product
- grav
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Jul 10, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-55783 · Other software · M2Team · reported by GitHubLow 2.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's seven in-house IInArchive handlers in NanaZip.Codecs unconditionally dereference the caller-supplied Indices array inside Extract when the archive engine signals extract everything by passing Indices as NULL and NumItems as 0xFFFFFFFF. This causes a NULL pointer dereference in the standard Test archive or Extract all code path for WebAssembly, ElectronAsar, Zealfs, Romfs, Ufs, Littlefs, and DotNetSingleFile archives, resulting in a process crash. This issue is fixed in version 6.5.1749.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-55782 · Other software · M2Team · reported by GitHubLow 2.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's WebAssembly archive handler in NanaZip.Codecs.Archive.WebAssembly.cpp allocates buffers from attacker-controlled 32-bit section and custom-name length fields without validating them against the data present in the file. A tiny crafted module can force multi-gigabyte allocations during listing or extraction through NameSize, Information.Size, and std::string or vector allocation paths, causing memory exhaustion or process termination. This issue is fixed in version 6.5.1749.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-55781 · Other software · M2Team · reported by GitHubLow 2.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's UFS and FFS image handler in NanaZip.Codecs.Archive.Ufs.cpp validates the superblock block size only against the MINBSIZE lower bound and does not validate the fs_fsize fragment size, allowing attacker-controlled 32-bit fields to flow into indirect-block, directory, and extraction buffer allocations. A tiny crafted UFS image can force multi-gigabyte allocations during open or extraction, causing memory exhaustion or process termination. This issue is fixed in version 6.5.1749.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-55780 · Other software · M2Team · reported by GitHubLow 2.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp sizes its extraction buffer from the bundle entry Size field, which is only checked for sign and is not validated against the real file size. A crafted bundle can cause an attacker-chosen allocation inside Extract, where std::bad_alloc or std::length_error can escape across the COM STDMETHODCALLTYPE boundary and crash the process. This issue is fixed in version 6.5.1749.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field.CVE-2026-39244 · Other software · reported by MITREHigh 7.5
adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloc(_centralHeader.size) allocates memory based on the declared uncompressed size from the ZIP central directory header without validating it against the actual compressed data size or imposing any upper bound. The size value is read directly from the binary header at entryHeader.js line 266 with no bounds check. An attacker can craft a ~120-byte ZIP file that declares ~4GB uncompressed size, causing a memory allocation amplification ratio of over 33 million to 1. The allocation occurs before CRC validation, so the malicious payload cannot be rejected early. All extraction and read methods are affected: readFile(), readAsText(), extractEntryTo(), extractAllTo(), extractAllToAsync(), test(), and entry.getData(). Any application accepting untrusted ZIP files via adm-zip is vulnerable to immediate process crash.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract() that lacks limits on uncompressed size, file count, and nesting depth.CVE-2026-61455 · Other software · getgrav · reported by VulnCheckHigh 7.1
Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract() that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage resources.
- Product
- grav
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Jul 8, 2026py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption.CVE-2026-55206 · Other software · miurahr · reported by GitHubHigh 8.7
py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, PackInfo._read() in archiveinfo.py used an O(n^2) cumulative sum pattern for attacker-controlled numstreams values parsed from archive headers, allowing a crafted .7z archive to cause excessive CPU consumption during SevenZipFile.init() before extraction. This issue is fixed in version 1.1.3.
- Product
- py7zr
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 8, 2026py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption.CVE-2026-55195 · Other software · miurahr · reported by GitHubHigh 8.7
py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Prior to 1.1.3, py7zr's Worker.decompress() extracted archive entries without tracking total decompressed size, allowing a crafted .7z file such as a 15.6 KB archive that expands to 100 MB to exhaust disk or memory before extraction completes. This issue is fixed in version 1.1.3.
- Product
- py7zr
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 8, 2026BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing caCVE-2026-14966 · Other software · Black Lantern Security · reported by cves@blacklanternsecurity.comLow 3.1
BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not.
- Product
- BBOT
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 1, 2026An issue in Pivotal CRM 6.6.4.08 and systems using patch-ghi-15381-cwe-502-20251225.zip (fixed in Pivotal CRM 6.6.5.10 and Patch_CWE502_20260316.zip) allows a rCVE-2026-51947 · Other software · reported by MITRECritical 9.8
An issue in Pivotal CRM 6.6.4.08 and systems using patch-ghi-15381-cwe-502-20251225.zip (fixed in Pivotal CRM 6.6.5.10 and Patch_CWE502_20260316.zip) allows a remote attacker to execute arbitrary code via the Pivotal.Engine.Client.Services.Conversion.dll component. NOTE: this issue exists because of an incomplete fix for CVE-2026-39253.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsupport.pivotal.aurea.comtimtimxs.github.io
Jul 1, 2026A vulnerability in allegroai/clearml versions up to and including 1.16.5 allows for relative path traversal when extracting `.zip` archives using the `ZipFile.eCVE-2026-8387 · Other software · allegroai · reported by security@huntr.devLow 2.4
A vulnerability in allegroai/clearml versions up to and including 1.16.5 allows for relative path traversal when extracting `.zip` archives using the `ZipFile.extractall()` method in `StorageManager._extract_to_cache()`. This issue arises due to the lack of path traversal validation, enabling an attacker to write arbitrary files to the filesystem. Attack vectors include dataset downloads, artifact downloads, model downloads, and offline session imports. The vulnerability can lead to remote code execution through methods such as cron job injection, SSH key overwrite, or web shell deployment. The issue is resolved in version 2.1.6.
- Product
- allegroai/clearml
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 29, 2026GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompCVE-2026-41992 · Other software · GNU · reported by cvd@cert.plMedium 6.9
GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation. By decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer. This issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and e7378c2d421be6a286922374425680bbe9ad8b7d.
- Product
- gzip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.plcgit.git.savannah.gnu.org
Jun 29, 2026GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling.CVE-2026-41991 · Other software · GNU · reported by cvd@cert.plLow 2
GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user’s PATH, gzexe falls back to constructing a temporary file path based solely on the process ID (PID). This predictable filename is created without exclusive access or existence checks. A local attacker can pre‑create the predicted temporary file path as a symbolic link pointing to an arbitrary file writable by the victim. When gzexe runs, it follows the symlink and overwrites the target file, resulting in a time‑of‑check to time‑of‑use (TOCTOU) condition that allows arbitrary file overwrite. This issue has been fixed in the commit 4e6f8b24ab823146ab8776f0b7fe486ab34d4269
- Product
- gzip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.plcgit.git.savannah.gnu.org
Jun 27, 20267-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplCVE-2026-58052 · Other software · 7-Zip · reported by VulnCheckMedium 4.8
7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while a RAR5 STM record named ':Zone.Identifier:$DATA' is not matched and NTFS canonicalizes it to the same stream, overwriting the propagated Internet-zone marker with ZoneId=0. A second STM record named '::$DATA' overwrites the extracted file's default data stream, letting an attacker defeat SmartScreen/MotW warnings and spoof file content.
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 26, 2026extract-zip does not validate symlink targets when extracting zip archives.CVE-2026-56876 · Other software · max-mapper · reported by 9119a7d8-5eab-497f-8521-727c672e3725High 8.6
extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.
- Product
- extract-zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comraw.githubusercontent.com
Jun 26, 2026Contributor SQL Injection in Recipe Maker For Your Food Blog from Zip Recipes <= 8.2.7 versions.CVE-2026-57663 · WordPress plugins & themes · reported by PatchstackHigh 8.5
Contributor SQL Injection in Recipe Maker For Your Food Blog from Zip Recipes <= 8.2.7 versions.
- What to do
- Update the plugin to the newest version.
Jun 25, 2026Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication.CVE-2026-56768 · Other software · haiwen · reported by VulnCheckHigh 8.7
Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory trees.
- Product
- seahub
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 25, 2026The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, and only renames image files (gif/jpg/jpeg/png/webpCVE-2026-48945 · Other software · getk2.org · reported by security@joomla.orgMedium 5.3
The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, and only renames image files (gif/jpg/jpeg/png/webp) to safe names — non-image files (including `.php`) are extracted as-is and remain executable via direct HTTP access.
- Product
- K2 extension for Joomla
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 24, 2026py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption.CVE-2026-23879 · Other software · miurahr · reported by GitHubHigh 8
py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption and decryption. Versions 1.1.2 and below contain an an arbitrary file write vulnerability, which allows symbolic links to be recreated outside the destination directory via crafted malicious symbolic link chains. When using extractall to extract an archive, the library restores these symbolic links, linking them to arbitrary directories on the host file system. During extraction, the program only checks the link arcname within the destination directory, but ignores the combined symlink path resolution. Attackers can exploit this vulnerability by constructing malicious archives, thereby bypassing the directory boundary restrictions implemented by the extractor. Subsequent extraction of regular files through these symbolic links can result in arbitrary file writes. This vulnerability may lead to remote code execution, privilege escalation, data corruption, or denial of service. This issue has been fixed in version 1.1.3.
- Product
- py7zr
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 15, 2026Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc (GRPC.Compressor.Gzip, GRPC.Message modules) allows a denial CVE-2026-53430 · Other software · elixir-grpc · reported by 6b3ad84c-e1a6-4bf7-a703-f496b71e49dbHigh 8.7
Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc (GRPC.Compressor.Gzip, GRPC.Message modules) allows a denial of service via a gzip decompression bomb. This vulnerability is associated with program files lib/grpc/compressor/gzip.ex, lib/grpc/message.ex and program routines 'Elixir.GRPC.Compressor.Gzip':decompress/1, 'Elixir.GRPC.Message':from_data/2. 'Elixir.GRPC.Compressor.Gzip':decompress/1 calls :zlib.gunzip/1 directly on attacker-controlled bytes with no decompressed-size limit, ratio check, or incremental decoding. Because this module is the registered gzip GRPC.Compressor implementation, it is invoked automatically whenever an incoming gRPC frame carries the grpc-encoding: gzip header. :zlib.gunzip/1 allocates the entire decompressed result as a single binary, so a small highly compressible payload (for example a few kilobytes of zeros, which gzip compresses at roughly 1000:1) expands to multiple gigabytes inside a single call. The max_receive_message_length limit is enforced only against the already-decompressed message, so it provides no protection. An unauthenticated remote peer can send a single crafted frame to exhaust
- Product
- grpc
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.erlef.orggithub.com
Jun 12, 2026Heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML may allow Local Execution of Code or Denial-of-ServicCVE-2025-7011 · Other software · Gen Digital · reported by security@nortonlifelock.comHigh 7.8
Heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML may allow Local Execution of Code or Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds from 25020100 before 25021208. The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.
- Product
- Avast Antivirus
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-47223 · Other software · M2Team · reported by GitHubMedium 5.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot (AVB) vbmeta image parser in NanaZip (via the upstream 7-Zip AvbHandler). A 32-bit unsigned integer overflow in the bounds check pos + ht.salt_len > descSize allows an attacker-controlled salt_len field to bypass validation, causing CByteBuffer::CopyFrom to memcpy up to ~4 GiB past the end of a 64. This issue has been patched in stable version 6.0.1698.0 and preview version 6.5.1742.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-47224 · Other software · M2Team · reported by GitHubMedium 4.3
NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap buffer-overflow read exists in the LVM2 physical-volume metadata parser in NanaZip (via the upstream 7-Zip LvmHandler). The vulnerability is triggered when opening a crafted LVM disk image. This issue has been patched in stable version 6.0.1698.0 and preview version 6.5.1742.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 12, 2026NanaZip is the 7-Zip derivative intended for the modern Windows experience.CVE-2026-47222 · Other software · M2Team · reported by GitHubMedium 5.4
NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot (AVB) vbmeta image parser in NanaZip (via the upstream 7-Zip AvbHandler). An unsigned integer underflow in a bounds check allows an attacker-controlled value_num_bytes field to pass validation, causing AddNameToString to read up to ~4 GiB past the end of a 64 KiB heap buffer. This causes a deterministic crash (denial of service) when opening a crafted .avb or .img file. This issue has been patched in stable version 6.0.1698.0 and preview version 6.5.1742.0.
- Product
- NanaZip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026Ghidra before 12.0.2 contains a path traversal vulnerability in the extension installer that fails to validate ZIP entry names during extraction.CVE-2026-52752 · Other software · nationalsecurityagency · reported by VulnCheckHigh 8.4
Ghidra before 12.0.2 contains a path traversal vulnerability in the extension installer that fails to validate ZIP entry names during extraction. Attackers can craft malicious extensions with traversal sequences like ../ in filenames to write arbitrary files outside the intended directory, enabling code execution.
- Product
- ghidra
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48112 · Other software · mcmilk · reported by GitHubMedium 6.5
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48111 · Other software · mcmilk · reported by GitHubMedium 4.3
7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parser(CPP/7zip/Archive/UefiHandler.cpp). The function validates an attacker-controlled opcode byte using > instead of >= against the element count of the 10-entry kExpressionCommands static array, allowing an opcode value of 10 to read one pointer slot (8 bytes on x64) past the end of the array in .rodata. The out-of-bounds value is then dereferenced as a const char * and passed through strlen and memcpy into the archive's Characts property, which may cause either a denial of service (access violation when the adjacent bytes do not form a valid readable pointer) or a minor information disclosure of an adjacent .rdata string literal into archive metadata. The vulnerability is reached automatically during IInArchive::Open() via the call path OpenFv/OpenCapsule → ParseVolume → ParseSections when processing a SECTION_DXE_DEPEX (0x13) or SECTION_PEI_DEPEX (0x1B) section whose first body byte is 0x0A, and the UEFI handler is enabled by default in stock 7z.dll with signature-based det
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48104 · Other software · mcmilk · reported by GitHubMedium 4.2
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, _blockToNode is allocated with capacity for every metadata block but populated only when an inode crosses a block boundary, so a crafted image with few inodes spanning many blocks leaves most slots holding raw heap contents (the underlying allocator does not zero-initialize POD storage). When OpenDir looks up an attacker-influenced blockIndex (derived from the RootInode superblock field), it reads two of these uninitialized slots and passes them as the left/right bounds of a binary search over _nodesPos, which dereferences the midpoint without bounds checking; if the resulting value happens to match the search key, the returned index is used to read a full node struct from _nodes whose fields feed further directory parsing, forming a chained OOB read primitive that is heap-layout-dependent and not reliably triggerable. The SquashFS handler is enabled by default in stock 7z.dll and the issue triggers during Open() with no interaction beyond opening the file; impact i
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48103 · Other software · mcmilk · reported by GitHubMedium 4.3
7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain an off-by-one heap out-of-bounds read in the WIM (Windows Imaging) archive handler's security descriptor lookup. In CHandler::GetSecurity (CPP/7zip/Archive/Wim/WimHandler.cpp), the per-image SecurOffsets table holds numEntries + 1 cumulative offsets, but the check securityId >= SecurOffsets.Size() admits securityId == numEntries, and the function then reads SecurOffsets[securityId + 1], fetching one UInt32 past the end of the heap-allocated CRecordVector (which performs no bounds checking on operator[]). The securityId is attacker-controlled at offset +0xC of any directory entry in WIM metadata, and the handler is registered for .wim, .swm, .esd, and .ppkg and enabled by default in stock 7z.dll; the OOB triggers zero-click in the GUI because 7zFM.exe's ListView calls GetRawProp(kpidNtSecure) for every item during listing (ASan-confirmed), and is also reachable via CLI listing with 7zz l -slt. Impact is limited to denial of service under hardened allocators and minor information disclosure, since the OOB value is only consumed arithmetically as a length and is not surfaced to the attacker; th
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48102 · Other software · mcmilk · reported by GitHubLow 3.1
7-Zip is a file archiver with a high compression ratio. Versions 9.11 through 26.00 contain a heap out-of-bounds read of up to 3 bytes in the UDF disc image handler's File Identifier Descriptor parser. In CFileId::Parse (CPP/7zip/Archive/Udf/UdfIn.cpp), after validating size < 38 + idLen + impLen and advancing processed to 38 + impLen + idLen, the alignment-padding loop reads p[processed] while incrementing up to 3 times to reach a 4-byte boundary, and the processed <= size bounds check only runs after the loop. When (38 + impLen + idLen) % 4 != 0 and 38 + impLen + idLen == size, the loop reads 1 to 3 bytes past the end of the exact-size heap buffer allocated via buf.Alloc((size_t)item.Size). The UDF handler is registered for .iso and .udf files and auto-detected by signature, and the OOB read triggers during Open() when listing or extracting a crafted UDF image. Impact is limited to information disclosure (a 1-bit oracle per OOB byte via open/fail behavior) and denial of service (crash under hardened allocators); there is no write primitive. Version 26.01 fixes the issue.
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48101 · Other software · mcmilk · reported by GitHubMedium 6.5
7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an An uninitialized memory disclosure vulnerability in the UEFI capsule (.scap) parser in 7-Zip. The OpenCapsule function allocates a heap buffer of attacker-declared CapsuleImageSize (up to 1 GiB) without zero-initialization, then reads the file contents into it with ReadStream_FALSE whose return value is silently discarded. If the file is truncated, the unread tail of the buffer retains uninitialized heap memory, which is then exposed as extracted file content via GetStream. Version 26.0.1 fixes the issue.
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.com
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48095 · Other software · mcmilk · reported by GitHubHigh 8.8
7-Zip is a file archiver with a high compression ratio. Versions 26.00 and prior contain a heap buffer overflow vulnerability caused by an under-allocation in the NTFS compressed stream buffer (GetCuSize shift UB), potentially allowing attackers to cause arbitrary code execution or application crashes. CInStream::GetCuSize() in the NTFS handler computes the compression-unit buffer size as (UInt32)1 << (BlockSizeLog + CompressionUnit), and a crafted image with ClusterSizeLog >= 28 and CompressionUnit == 4 drives the exponent to 32, which is undefined behavior and collapses on x86/x64 so _inBuf is allocated as 1 byte. ReadStream_FALSE then writes up to 256 MB of attacker-controlled data into that 1-byte buffer in 64 KB iterations, and because the CInStream object sits only 304 bytes after _inBuf, its vtable pointer is overwritten and the next dispatched call achieves a vtable hijack. On 32-bit builds the overflow is unconditionally reached; on 64-bit it requires the parallel 8 GB _outBuf allocation to succeed, otherwise failing closed to denial of service. The NTFS handler is enabled by default in stock 7z.dll and, via signature-based fallback matching "NTFS " at offset 3, will op
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsourceforge.net
Jun 5, 20267-Zip is a file archiver with a high compression ratio.CVE-2026-48092 · Other software · mcmilk · reported by GitHubMedium 4.3
7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass the fragment bounds check, causing memcpy to read heap memory preceding the cache buffer into the extracted file. The vulnerability is exploitable only on 32-bit builds of 7-Zip where size_t is 32 bits, allowing the addition offsetInBlock + blockSize to wrap modulo 2³². On 64-bit builds the addition is promoted to 64 bits and the check correctly rejects the input. Version 26.01 patches the issue.
- Product
- 7-Zip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritylab.github.comsecuritylab.github.com
Jun 5, 2026All versions of the package decompress are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) when extracting a ZIP archive containing two entCVE-2026-10732 · Other software · Red Hat · reported by report@snyk.ioMedium 5.6
All versions of the package decompress are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) when extracting a ZIP archive containing two entries with the same path - the first being a symlink to an arbitrary target and the second being a regular file - the file content is written through the symlink to the target location outside the output directory. This is due to the microtask processing order that checks readlink for the second file before resolving symlink for the first file. An attacker can write arbitrary file on the host filesystem potentially leading to remote code execution by providing a specially crafted ZIP archive. **Note:** This bypasses all existing path traversal protections including preventWritingThroughSymlink, added as a part of the fix for [CVE-2020-12265](https://security.snyk.io/vuln/SNYK-JS-DECOMPRESS-557358).
- Product
- Red Hat Advanced Cluster Management for Kubernetes 2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
Jun 2, 2026Path traversal in restore handler in Collibra Agent, allows an attacker to write arbitrary files via a crafted ZIP archive.CVE-2026-10621 · Other software · Collibra · reported by cret@cert.orgHigh 7.5
Path traversal in restore handler in Collibra Agent, allows an attacker to write arbitrary files via a crafted ZIP archive. Collibra Agent fails to properly validate and canonicalize file path during ZIP extraction, this can allow an attacker to write files outside the intended extraction directory.
- Product
- Collibra Platform (SaaS)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.cert.orgcollibra.com
May 29, 2026Nozomi Networks Labs identified a CWE-23: Relative Path Traversal (Zip Slip) in Waterfall WF-500 RX Host in version 7.9.1.0 R2502171040 that allows attackers wiCVE-2025-41280 · Other software · Waterfall · reported by prodsec@nozominetworks.comHigh 7.5
Nozomi Networks Labs identified a CWE-23: Relative Path Traversal (Zip Slip) in Waterfall WF-500 RX Host in version 7.9.1.0 R2502171040 that allows attackers with access to the TX Host to execute code on the RX Host when a MySQL connector is configured and file compression is enabled.
- Product
- WF-500
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 28, 2026bzip2 contains an off‑by‑one error in the bzip2recover utility.CVE-2026-42250 · Other software · bzip2 · reported by cvd@cert.plMedium 4.8
bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service). This issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67
- Product
- bzip2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert.plinbox.sourceware.org
May 27, 2026Jenkins Credentials Binding Plugin 720.v3f6decef43ea_ and earlier does not properly sanitize file names for file and zip file credentials, allowing attackers abCVE-2026-48922 · Websites & servers · Jenkins Project · reported by jenkinsci-cert@googlegroups.comHigh 7.5
Jenkins Credentials Binding Plugin 720.v3f6decef43ea_ and earlier does not properly sanitize file names for file and zip file credentials, allowing attackers able to provide credentials to a job to write files to arbitrary locations on the node filesystem, which can lead to remote code execution if Jenkins is configured to allow a low-privileged user to configure file or zip file credentials used for a job running on the built-in node.
- Product
- Jenkins Credentials Binding Plugin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 27, 2026IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-bytCVE-2026-48961 · Other software · PMQS · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 7.3
IO::Compress versions from 2.207 before 2.220 for Perl ship a zipdetails CLI tool that crashes with undefined subroutine on Info-ZIP Unix Extra Field with 8-byte UID or GID. When decode_ux() in bin/zipdetails handles an Info-ZIP Unix Extra Field (tag 0x7875) with UID Size or GID Size set to 8, causing zipdetails to decode an 8-byte UID or GID value, it dispatches through decodeLitteEndian(), which calls a misnamed helper unpackValueQ. The actual function defined in the same file is unpackValue_Q (with underscore); the call raises 'Undefined subroutine &main::unpackValueQ' and the script exits with status 255. Library callers of IO::Compress and IO::Uncompress are not affected; the defect is in the bundled CLI tool.
- Product
- IO::Compress
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.commetacpan.org
May 27, 2026IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward.CVE-2026-48959 · Other software · PMQS · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 7.5
IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU exhaustion via per-byte read loop in fastForward. fastForward() compares length $offset (the digit count of the offset, 1 to 19) against the chunk size $c instead of $offset itself, so $c shrinks from 16 KiB to 1-19 bytes per iteration. Extracting a named entry from an attacker supplied zip via IO::Uncompress::Unzip->new($zip, Name => $target) drives a per-byte read loop scaling with the entry's compressed size, up to the non-Zip64 4 GiB cap.
- Product
- IO::Uncompress::Unzip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.commetacpan.org
May 27, 2026IO::Uncompress::Unzip versions before 2.215 for Perl propagate uncaught exception when parsing zip header with malformed DOS date.CVE-2025-15649 · Other software · PMQS · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eMedium 5.5
IO::Uncompress::Unzip versions before 2.215 for Perl propagate uncaught exception when parsing zip header with malformed DOS date. _dosToUnixTime() decodes the local-file-header last-modification date field and calls Time::Local::timelocal() without an eval guard. A header whose date field decodes to an out-of-range month, day, or hour causes timelocal() to die. The exception propagates out of IO::Uncompress::Unzip->new($file) where callers expect undef plus $UnzipError.
- Product
- IO::Uncompress::Unzip
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 18, 2026Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticaCVE-2026-6340 · Other software · Mattermost · reported by responsibledisclosure@mattermost.comMedium 4.3
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted 7zip file with excessive folder declarations.. Mattermost Advisory ID: MMSA-2026-00573
- Product
- Mattermost
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.