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.
65 results · page 1 of 2
Oct 27, 2026Use-after-free in the Networking: WebSockets component.CVE-2026-117922 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the Networking: WebSockets component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.mozilla.orgmozilla.org
Oct 23, 2026Missing Origin Validation in WebSockets (CWE-1385) and Permissive Cross-domain Policy with Untrusted Domains (CWE-942) in the development web server (ADK Web) iCVE-2026-107858 · Computers, phones & browsers · Google · reported by cve-coordination@google.comHigh 7.2
Missing Origin Validation in WebSockets (CWE-1385) and Permissive Cross-domain Policy with Untrusted Domains (CWE-942) in the development web server (ADK Web) in Google Agent Development Kit (ADK) for Java (com.google.adk:google-adk-dev versions 0.1.0 before 1.13.0 and com.google.adk:google-adk-maven-plugin versions 0.3.0 before 1.13.0) allow a remote attacker to control a locally running agent and read its data via a malicious web page visited by a developer while the server is running. The /run_live WebSocket endpoint accepts connections from any origin by default (hardcoded via setAllowedOrigins("*") in versions 0.1.0 through 1.5.0, and defaulting to * via adk.web.cors.origins in versions 1.6.0 through 1.12.0), and since version 0.4.0 the REST API returns Access-Control-Allow-Origin: * by default. Because the server has no authentication and requests originate from the developer's browser (so binding to localhost does not prevent exploitation), a cross-origin page can send messages to the agent (triggering registered tools), stream agent responses, and list, read, create, or delete sessions and artifacts. In versions 1.6.0 through 1.12.0, users can mitigate the issue by setting
- Product
- Agent Development Kit (ADK) for Java
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 22, 2026Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets.CVE-2026-54238 · Other software · supabase · reported by GitHubLow 3.1
Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets. Prior to version 2.103.1, the REST broadcast endpoints accept an expired JWT when the exp claim is encoded as a JSON string instead of a JSON number. The same route rejects an expired integer exp token signed with the same tenant secret. The accepted request returns 202 and emits the broadcast to subscribers. This could allow an unauthenticated attacker can broadcast realtime messages to subscribers. The attack can be performed via the Internet/only from within the supabase project. The impact of broadcasting messages to subscribers is application specific. This issue has been patched in version 2.103.1.
- Product
- realtime
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 20, 2026Use after free in WebSockets in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML pCVE-2026-113037 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.8
Use after free in WebSockets in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordchromereleases.googleblog.comissues.chromium.org
Oct 15, 2026ELADMIN v2.7 and before is vulnerable to Cross Site Scripting (XSS) via the component WebSocketServer, SpringSecurityConfig, deploy.vue.CVE-2026-106701 · Other software · reported by MITREMedium 6.1
ELADMIN v2.7 and before is vulnerable to Cross Site Scripting (XSS) via the component WebSocketServer, SpringSecurityConfig, deploy.vue.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parserCVE-2026-95115 · Other software · reported by MITREHigh 7.5
Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via the LEJP JSON parser
- 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
Oct 13, 2026libwebsockets contains an out-of-bounds read vulnerability in the LEJP incremental parser in lib/misc/lejp.c.CVE-2026-95114 · Other software · reported by MITREHigh 7.5
libwebsockets contains an out-of-bounds read vulnerability in the LEJP incremental parser in lib/misc/lejp.c. This allows a remote attacker to cause a denial of service
- 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
Sep 21, 2026Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets.CVE-2026-62247 · Other software · supabase · reported by GitHubMedium 6.5
Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets. Prior to 2.111.2, Realtime authorization does not correctly honor the per-extension presence.read row-level security policy when a private-channel client is allowed presence.write but explicitly denied presence.read. Under that differential policy, the client can receive presence_diff messages containing other members' presence metadata, including application-defined location, online-status, roster, viewing, or typing information. Deployments with uniform presence visibility have no differential, and postgres_changes row data is unaffected. This issue is fixed in version 2.111.2.
- Product
- realtime
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 18, 2026A flaw was found in Netty's WebSocketServerExtensionHandler.CVE-2026-93558 · Other software · Red Hat · reported by Red HatHigh 7.5
A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server.
- Product
- Red Hat Build of Apache Camel 3.33.3.SP2
- 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
Sep 17, 2026A flaw was found in quarkus-websockets-next.CVE-2026-87742 · Other software · Red Hat · reported by Red HatHigh 7.5
A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly exhausts heap space, leading to a java.lang.OutOfMemoryError that crashes the Java Virtual Machine (JVM).
- Product
- Red Hat build of Quarkus 3.27.5.SP2
- 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
Sep 15, 2026libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability.CVE-2026-19773 · Other software · libwebsockets · reported by zdi-disclosures@trendmicro.comCritical 9.8
libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of libwebsockets. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of HTTP/2 HPACK path header. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31036.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comzerodayinitiative.com
Sep 4, 2026undici's experimental WebSocketStream client crashes the whole Node.js process when a remote peer closes the TCP connection without a WebSocket close handshake.CVE-2026-85014 · Other software · undici · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 5.9
undici's experimental WebSocketStream client crashes the whole Node.js process when a remote peer closes the TCP connection without a WebSocket close handshake. On an unclean close the internal socket-close handler calls abort on the writable stream unconditionally and discards the returned promise, but per the WHATWG Streams standard aborting a locked writable returns a promise that rejects with a TypeError. Because the application holds a writer on that writable, which is the only way to write, the rejection is never observed and Node's default unhandled-rejection behavior terminates the process. An untrusted server can therefore crash a client with a single abrupt disconnect, with no authentication and no application mistake. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.
- Product
- undici
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.openjsf.orggithub.com
Aug 23, 2026A vulnerability was found in warmcat libwebsockets 4.5.0.CVE-2026-78161 · Other software · warmcat · reported by VulDBMedium 5.5
A vulnerability was found in warmcat libwebsockets 4.5.0. Impacted is the function report_raw_cbor of the file lib/misc/lecp.c of the component LECP CBOR Recording. The manipulation results in out-of-bounds write. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as 1d44554a1bb262db63ff4e240152a9deecd99054. It is best practice to apply a patch to resolve this issue.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 29, 2026Use after free in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.CVE-2026-17947 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comCritical 9.6
Use after free in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Low)
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordchromereleases.googleblog.comissues.chromium.org
Jul 29, 2026Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer procCVE-2026-17768 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comCritical 9.6
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordchromereleases.googleblog.comissues.chromium.org
Jul 29, 2026Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability.CVE-2026-13308 · Other software · Autel · reported by zdi-disclosures@trendmicro.comHigh 8.1
Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113.
- Product
- MaxiCharger AC Elite Home
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 21, 2026Information disclosure in the Networking: WebSockets component.CVE-2026-16405 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.mozilla.orgmozilla.org
Jun 17, 2026ws is an open source WebSocket client and server for Node.js.CVE-2026-48779 · Other software · websockets · reported by GitHubHigh 7.5
ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.
- Product
- ws
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 4, 2026Use after free in WebSockets in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML pagCVE-2026-11068 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.8
Use after free in WebSockets in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordchromereleases.googleblog.comissues.chromium.org
Jun 3, 2026daphne before 4.2.2 did not pass maxFramePayloadSize or maxMessagePayloadSize to Autobahn's WebSocketServerFactory.CVE-2026-44545 · Other software · djangoproject · reported by 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92Medium 5.3
daphne before 4.2.2 did not pass maxFramePayloadSize or maxMessagePayloadSize to Autobahn's WebSocketServerFactory. Because Autobahn defaults both values to 0 (unlimited), an unauthenticated remote attacker could send arbitrarily large WebSocket messages or frames, causing excessive memory consumption and a denial of service.
- Product
- daphne
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 2, 2026A flaw has been found in warmcat libwebsockets up to 4.5.8.CVE-2026-10650 · Other software · warmcat · reported by VulDBMedium 5.5
A flaw has been found in warmcat libwebsockets up to 4.5.8. This issue affects the function lws_ssh_parse_plaintext of the file plugins/protocol_lws_ssh_base/sshd.c of the component SSH Protocol Handler. Executing a manipulation of the argument msg_len can lead to resource consumption. The attack may be launched remotely. The exploit has been published and may be used. This patch is called 3f9f0c6ecaf0e6f3f219d30632c5d1f2479d7498. A patch should be applied to remediate this issue.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 15, 2026ws is an open source WebSocket client and server for Node.js.CVE-2026-45736 · Other software · websockets · reported by GitHubMedium 4.4
ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close() implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1.
- Product
- ws
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 8, 2026Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer procCVE-2026-5919 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comMedium 6.5
Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordchromereleases.googleblog.comissues.chromium.org
Feb 26, 2026A missing origin validation in WebSockets vulnerability affects the GraphicalData web services used by the WebVue, WebScheduler, TouchVue and SnapVue features oCVE-2026-1692 · Other software · arcinfo · reported by 87c8e6ad-f0f5-4ca8-89e2-89f26d6ed932Medium 5.3
A missing origin validation in WebSockets vulnerability affects the GraphicalData web services used by the WebVue, WebScheduler, TouchVue and SnapVue features of PcVue in version 12.0.0 through 16.3.3 included. It might allow a remote attacker to lure a successfully authenticated user to a malicious website. This vulnerability only affects the following two endpoints: GraphicalData/js/signalR/connect and GraphicalData/js/signalR/reconnect.
- Product
- PcVue
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 20, 2025Out-of-bounds Write in unfilter_scanline in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack iCVE-2025-11680 · Other software · warmcat · reported by prodsec@nozominetworks.comMedium 5.9
Out-of-bounds Write in unfilter_scanline in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to write past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big width value that causes an integer overflow which value is used for determining the size of a heap allocation.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlibwebsockets.orgnozominetworks.com
Oct 20, 2025Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stCVE-2025-11679 · Other software · warmcat · reported by prodsec@nozominetworks.comMedium 5.9
Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlibwebsockets.orgnozominetworks.com
Oct 20, 2025Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overCVE-2025-11678 · Other software · warmcat · reported by prodsec@nozominetworks.comHigh 7.5
Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
- Product
- libwebsocket
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlibwebsockets.orgnozominetworks.com
Oct 20, 2025Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the uCVE-2025-11677 · Other software · warmcat · reported by prodsec@nozominetworks.comMedium 6.3
Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlibwebsockets.orgnozominetworks.com
Aug 3, 2025Missing Origin Validation in WebSockets vulnerability in Apache Zeppelin.CVE-2024-51775 · Websites & servers · Apache Software Foundation · reported by security@apache.orgMedium 5.3
Missing Origin Validation in WebSockets vulnerability in Apache Zeppelin. The attacker could access the Zeppelin server from another origin without any restriction, and get internal information about paragraphs. This issue affects Apache Zeppelin: from 0.11.1 before 0.12.0. Users are recommended to upgrade to version 0.12.0, which fixes the issue.
- Product
- Apache Zeppelin
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comopenwall.com
Mar 3, 2025Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows Pointer Manipulation, potentially leading CVE-2025-1866 · Other software · warmcat · reported by cve_disclosure@tech.gov.sgCritical 10
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows Pointer Manipulation, potentially leading to out-of-bounds memory access. This issue affects libwebsockets before 4.3.4 and is present in code built specifically for the Win32 platform. By default, the affected code is not executed unless one of the following conditions is met: LWS_WITHOUT_EXTENSIONS (default ON) is manually set to OFF in CMake. LWS_WITH_HTTP_STREAM_COMPRESSION (default OFF) is manually set to ON in CMake. Despite these conditions, when triggered in affected configurations, this vulnerability may allow attackers to manipulate pointers, potentially leading to memory corruption or unexpected behavior.
- Product
- libwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 29, 2025Missing Origin Validation in WebSockets vulnerability in FLXEON.CVE-2024-48849 · Other software · ABB · reported by cybersecurity@ch.abb.comHigh 8.8
Missing Origin Validation in WebSockets vulnerability in FLXEON. Session management was not sufficient to prevent unauthorized HTTPS requests. This issue affects FLXEON: through <= 9.3.4.
- Product
- FLXEON
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 17, 2024ws is an open source WebSocket client and server for Node.js.CVE-2024-37890 · Other software · websockets · reported by GitHubHigh 7.5
ws is an open source WebSocket client and server for Node.js. A request with a number of headers exceeding theserver.maxHeadersCount threshold could be used to crash a ws server. The vulnerability was fixed in ws@8.17.1 (e55e510) and backported to ws@7.5.10 (22c2876), ws@6.2.3 (eeb76d3), and ws@5.2.4 (4abd8f6). In vulnerable versions of ws, the issue can be mitigated in the following ways: 1. Reduce the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options so that no more headers than the server.maxHeadersCount limit can be sent. 2. Set server.maxHeadersCount to 0 so that no limit is applied.
- Product
- ws
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 14, 2024 When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management MiCVE-2024-21849 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.5
When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- Product
- BIG-IP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2023A buffer overflow in websockets in UnrealIRCd 6.1.0 through 6.1.3 before 6.1.4 allows an unauthenticated remote attacker to crash the server by sending an oversCVE-2023-50784 · Other software · Unrealircd · reported by MITREHigh 7.5
A buffer overflow in websockets in UnrealIRCd 6.1.0 through 6.1.3 before 6.1.4 allows an unauthenticated remote attacker to crash the server by sending an oversized packet (if a websocket port is open). Remote code execution might be possible on some uncommon, older platforms.
- Product
- Unrealircd
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordforums.unrealircd.orglists.fedoraproject.org
May 25, 2023Missing Origin Validation in WebSockets vulnerability in CBOT Chatbot allows Content Spoofing Via Application API Manipulation.CVE-2023-2886 · Other software · CBOT · reported by iletisim@usom.gov.trMedium 4.3
Missing Origin Validation in WebSockets vulnerability in CBOT Chatbot allows Content Spoofing Via Application API Manipulation. This issue affects Chatbot: before Core: v4.0.3.4 Panel: v4.0.3.7.
- Product
- Chatbot
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsiberguvenlik.gov.trusom.gov.tr
Mar 23, 2023Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes.CVE-2023-26114 · Other software · Coder · reported by report@snyk.ioHigh 8.2
Versions of the package code-server before 4.10.1 are vulnerable to Missing Origin Validation in WebSockets handshakes. Exploiting this vulnerability can allow an adversary in specific scenarios to access data from and connect to the code-server instance.
- Product
- Code-server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 1, 2022Rust-WebSocket is a WebSocket (RFC6455) library written in Rust.CVE-2022-35922 · Other software · websockets-rs · reported by GitHubHigh 7.5
Rust-WebSocket is a WebSocket (RFC6455) library written in Rust. In versions prior to 0.26.5 untrusted websocket connections can cause an out-of-memory (OOM) process abort in a client or a server. The root cause of the issue is during dataframe parsing. Affected versions would allocate a buffer based on the declared dataframe size, which may come from an untrusted source. When `Vec::with_capacity` fails to allocate, the default Rust allocator will abort the current process, killing all threads. This affects only sync (non-Tokio) implementation. Async version also does not limit memory, but does not use `with_capacity`, so DoS can happen only when bytes for oversized dataframe or message actually got delivered by the attacker. The crashes are fixed in version 0.26.5 by imposing default dataframe size limits. Affected users are advised to update to this version. Users unable to upgrade are advised to filter websocket traffic externally or to only accept trusted traffic.
- Product
- rust-websocket
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 10, 2022soketi is an open-source WebSockets server.CVE-2022-21667 · Other software · soketi · reported by GitHubHigh 7.5
soketi is an open-source WebSockets server. There is an unhandled case when reading POST requests which results in the server crashing if it could not read the body of a request. In the event that a POST request is sent to any endpoint of the server with an empty body, even unauthenticated with the Pusher Protocol, it will crash the server. All users that run the server are affected by this vulnerability and it's highly recommended to upgrade to the latest patch. There are no workarounds for this issue.
- Product
- soketi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 30, 2021uWebSockets 18.11.0 and 18.12.0 has a stack-based buffer overflow in uWS::TopicTree::trimTree (called from uWS::TopicTree::unsubscribeAll).CVE-2020-36406 · Other software · Uwebsockets Project · reported by MITREHigh 8.8
uWebSockets 18.11.0 and 18.12.0 has a stack-based buffer overflow in uWS::TopicTree::trimTree (called from uWS::TopicTree::unsubscribeAll). NOTE: the vendor's position is that this is "a minor issue or not even an issue at all" because the developer of an application (that uses uWebSockets) should not be allowing the large number of triggered topics to accumulate
- Product
- Uwebsockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.chromium.orggithub.com
Jun 6, 2021The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_authCVE-2021-33880 · Other software · Websockets Project · reported by MITREMedium 5.9
The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.
- Product
- Websockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 25, 2021ws is an open source WebSocket client and server library for Node.js.CVE-2021-32640 · Other software · websockets · reported by GitHubMedium 5.3
ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the [`--max-http-header-size=size`](https://nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](https://nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.
- Product
- ws
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2020This vulnerability allows an attacker to use the internal WebSockets API for CodeMeter (All versions prior to 7.00 are affected, including Version 7.0 or newer CVE-2020-14519 · Other software · Wibu · reported by ics-cert@hq.dhs.govHigh 7.5
This vulnerability allows an attacker to use the internal WebSockets API for CodeMeter (All versions prior to 7.00 are affected, including Version 7.0 or newer with the affected WebSockets API still enabled. This is especially relevant for systems or devices where a web browser is used to access a web server) via a specifically crafted Java Script payload, which may allow alteration or creation of license files for when combined with CVE-2020-14515.
- Product
- Codemeter
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordus-cert.cisa.govus-cert.cisa.gov
Jun 30, 2020It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames.CVE-2017-18922 · Other software · Libvncserver Project · reported by MITRECritical 9.8
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
- Product
- Libvncserver
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.opensuse.orglists.opensuse.org
Dec 10, 2019Use-after-free in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.CVE-2019-13729 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.8
Use-after-free in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.opensuse.orglists.opensuse.org
Dec 10, 2019Insufficient policy enforcement in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to bypass same origin policy via a crafted HTML pCVE-2019-13727 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.8
Insufficient policy enforcement in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to bypass same origin policy via a crafted HTML page.
- Product
- Chrome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.opensuse.orglists.opensuse.org
Jun 26, 2018aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unlessCVE-2018-1000518 · Other software · Websockets Project · reported by MITREHigh 7.5
aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5.
- Product
- Websockets
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 11, 2018A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished.CVE-2017-7800 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
- Product
- Thunderbird
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comsecuritytracker.com
Jun 4, 2018Socket.io is a realtime application framework that provides communication via websockets.CVE-2017-16031 · Other software · HackerOne · reported by support@hackerone.comHigh 7.5
Socket.io is a realtime application framework that provides communication via websockets. Because socket.io 0.9.6 and earlier depends on `Math.random()` to create socket IDs, the IDs are predictable. An attacker is able to guess the socket ID and gain access to socket.io servers, potentially obtaining sensitive information.
- Product
- socket.io node module
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 22, 2018In some circumstances, the Traffic Management Microkernel (TMM) does not properly handle certain malformed Websockets requests/responses, which allows remote atCVE-2018-5504 · Network & remote access · F5 Networks, Inc. · reported by f5sirt@f5.comHigh 8.1
In some circumstances, the Traffic Management Microkernel (TMM) does not properly handle certain malformed Websockets requests/responses, which allows remote attackers to cause a denial-of-service (DoS) or possible remote code execution on the F5 BIG-IP system running versions 13.0.0 - 13.1.0.3 or 12.1.0 - 12.1.3.1.
- Product
- BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecuritytracker.comsupport.f5.com
Jul 17, 2017Linux foundation ONOS 1.9.0 allows unauthenticated use of websockets.CVE-2017-1000080 · Other software · Onosproject · reported by MITREHigh 7.5
Linux foundation ONOS 1.9.0 allows unauthenticated use of websockets.
- Product
- Onos
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwiki.onosproject.orgwiki.onosproject.org
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.
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