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.
35 results
Oct 26, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-116578 · Other software · tornadoweb · reported by GitHubLow 2.1
Tornado is a Python web framework and asynchronous networking library. Prior to 6.6, tornado.web.RedirectHandler URL templates can place regex-capture substitutions where crafted request paths change the redirect scheme or network location. Affected placements include substitutions at the start of a path, directly after a fixed host, or at the beginning of the template, including protocol-relative, absolute, backslash, encoded, host-extension, and user-info variants interpreted by browsers as attacker-controlled destinations. Static templates and substitutions after a fixed host followed by a slash are not affected. An attacker can use the resulting open redirect on the application's domain for phishing. This issue is fixed in version 6.6.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 26, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-116577 · Other software · tornadoweb · reported by GitHubMedium 5.3
Tornado is a Python web framework and asynchronous networking library. Prior to 6.6, Tornado's HTTP header parser accepts obsolete line folding and repeatedly concatenates short continuation lines, causing quadratic CPU consumption on the IOLoop thread. An unauthenticated client can submit a header block containing many obsolete line-folding continuations before application code runs, blocking other connections served by the process. The cost grows with max_header_size, and only availability is affected. This issue is fixed in version 6.6.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 26, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-115927 · Other software · tornadoweb · reported by GitHubMedium 5.3
Tornado is a Python web framework and asynchronous networking library. Prior to 6.6.0, Tornado decodes HTTP/1.1 chunked transfer encoding by processing body data that has already arrived without yielding to the event loop. A remote unauthenticated peer can send millions of one-byte chunks to monopolize the process event loop and stall every other connection served by that process, while lowering max_body_size only limits the duration of each request. For handlers that do not use @stream_request_body, retaining each chunk as a separate object can consume roughly twenty times the received body size, and SimpleAsyncHTTPClient has the same event-loop behavior when reading a response from a malicious server. This issue is fixed in version 6.6.0.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 12, 2026Flower before 2.2.0 contains a cross-site request forgery vulnerability because Tornado xsrf_cookies is disabled and the OAuth session cookie lacks SameSite.CVE-2022-51020 · Other software · mher · reported by VulnCheckMedium 6
Flower before 2.2.0 contains a cross-site request forgery vulnerability because Tornado xsrf_cookies is disabled and the OAuth session cookie lacks SameSite. Attackers can lure authenticated users to malicious pages that POST to /api/worker/shutdown, /api/worker/pool/restart, or /api/task/revoke to shut down Celery workers, resize pools, and revoke tasks.
- Product
- flower
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 1, 2026Tornado before 6.5.9 contains a path traversal vulnerability in StaticFileHandler that follows symbolic links inside the static root without confirming the resoCVE-2026-103263 · Other software · tornadoweb · reported by VulnCheckHigh 8.2
Tornado before 6.5.9 contains a path traversal vulnerability in StaticFileHandler that follows symbolic links inside the static root without confirming the resolved target stays within it. When a symlink pointing outside the static directory exists inside it, unauthenticated attackers can request it to read files such as configuration files, private keys, and application secrets accessible to the process user.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 1, 2026Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of servCVE-2026-103262 · Other software · tornadoweb · reported by VulnCheckHigh 8.7
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that accumulates in memory without size limits, causing the application process to be killed by out-of-memory conditions.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 1, 2026Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.__init__, allowing remote attackers to cause event-loop stalling by sCVE-2026-103261 · Other software · tornadoweb · reported by VulnCheckMedium 6.9
Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.__init__, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts to degrade response times for all clients sharing the same IOLoop.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026Tornado before 6.5.7 contains a credential leak vulnerability in CurlAsyncHTTPClient where pycurl handles are reused across requests without proper state cleariCVE-2026-91992 · Other software · tornadoweb · reported by VulnCheckHigh 8.2
Tornado before 6.5.7 contains a credential leak vulnerability in CurlAsyncHTTPClient where pycurl handles are reused across requests without proper state clearing. Attackers can obtain sensitive credentials by issuing requests through the same client instance, allowing TLS certificates or proxy authentication to persist across unintended requests.
- Product
- tornado
- 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
Sep 15, 2026Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalizeCVE-2026-91991 · Other software · tornadoweb · reported by VulnCheckMedium 6.3
Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalized or legacy keyword arguments to set_cookie. Attackers can embed semicolon-delimited data in capitalized parameters like Domain, Path, or SameSite to bypass validation and modify cookie security attributes.
- Product
- tornado
- 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
Sep 15, 2026Tornado before 6.5.8 contains a memory amplification vulnerability in parse_multipart_form_data that splits multipart data before validating the max_parts limitCVE-2026-91990 · Other software · tornadoweb · reported by VulnCheckHigh 8.7
Tornado before 6.5.8 contains a memory amplification vulnerability in parse_multipart_form_data that splits multipart data before validating the max_parts limit. Attackers can send crafted multipart requests with many parts to create large transient lists, exhausting server memory and causing denial of service.
- Product
- tornado
- 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
Sep 15, 2026Tornado before 6.4.1 contains a CRLF injection vulnerability in CurlAsyncHTTPClient that fails to reject carriage return and line feed characters in request heaCVE-2024-58384 · Other software · tornadoweb · reported by VulnCheckMedium 6.3
Tornado before 6.4.1 contains a CRLF injection vulnerability in CurlAsyncHTTPClient that fails to reject carriage return and line feed characters in request headers. Attackers can inject CRLF sequences into header values to inject arbitrary headers or construct entirely new HTTP requests.
- Product
- tornado
- 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
Sep 15, 2026Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequCVE-2024-14029 · Other software · tornadoweb · reported by VulnCheckCritical 9
Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequent request. Attackers can exploit this inconsistency when Tornado is deployed behind proxies to perform HTTP request smuggling, enabling access control bypass, cache poisoning, or connection desynchronization.
- Product
- tornado
- 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
Sep 15, 2026Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters.CVE-2023-54397 · Other software · tornadoweb · reported by VulnCheckCritical 9
Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain proxies.
- Product
- tornado
- 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
Aug 31, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-82397 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.8, Tornado parses application/x-www-form-urlencoded request bodies with urllib.parse.parse_qs in tornado/escape.py without passing max_num_fields. RequestHandler._execute in tornado/web.py parses the body before handler dispatch through HTTPServerRequest._parse_body and parse_body_arguments in tornado/httputil.py, so an unauthenticated request body containing millions of separator-delimited fields can synchronously stall the single-threaded event loop and delay every connection. The body is bounded only by max_buffer_size, which defaults to 104857600 bytes. This issue is fixed in version 6.5.8.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-49855 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server accessed by SimpleAsyncHTTPClient or an HTTPServer configured with decompress_request=True to consume effectively unlimited memory. This issue is fixed in version 6.5.6.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-49854 · Other software · tornadoweb · reported by GitHubMedium 5.3
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native extension tornado.speedups implemented websocket_mask without validating that the mask argument is exactly four bytes, allowing the C function to read up to three bytes beyond the provided buffer when reached through Tornado XSRF token decoding with the native extension active. This issue is fixed in version 6.5.6.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-49853 · Other software · tornadoweb · reported by GitHubHigh 7.7
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed only the Host header, leaving Authorization, auth_username, auth_password, and auth_mode in place when a redirect changed scheme, host, or port. This issue is fixed in version 6.5.6.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 3, 2026In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked CVE-2026-35536 · Other software · tornadoweb · reported by MITREHigh 7.2
In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 11, 2026Tornado is a Python web framework and asynchronous networking library.CVE-2026-31958 · Other software · tornadoweb · reported by GitHubHigh 8.7
Tornado is a Python web framework and asynchronous networking library. In versions of Tornado prior to 6.5.5, the only limit on the number of parts in multipart/form-data is the max_body_size setting (default 100MB). Since parsing occurs synchronously on the main thread, this creates the possibility of denial-of-service due to the cost of parsing very large multipart bodies with many parts. This vulnerability is fixed in 6.5.5.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comlists.debian.org
Jan 22, 2026Tornados: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')CVE-2025-69070 · WordPress plugins & themes · reported by PatchstackHigh 8.1
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Tornados tornados allows PHP Local File Inclusion.This issue affects Tornados: from n/a through <= 2.1.
- Product
- Tornados
- Affected
- up to 2.1
- What to do
- Affects up to 2.1. Update Tornados to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Dec 12, 2025Tornado is a Python web framework and asynchronous networking library.CVE-2025-67726 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing parameters for HTTP header values, potentially causing a DoS. The _parseparam function in httputil.py is used to parse specific HTTP header values, such as those in multipart/form-data and repeatedly calls string.count() within a nested loop while processing quoted semicolons. If an attacker sends a request with a large number of maliciously crafted parameters in a Content-Disposition header, the server's CPU usage increases quadratically (O(n²)) during parsing. Due to Tornado's single event loop architecture, a single malicious request can cause the entire server to become unresponsive for an extended period. This issue is fixed in version 6.5.3.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 12, 2025Tornado is a Python web framework and asynchronous networking library.CVE-2025-67725 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can block the server's event loop for an extended period, caused by the HTTPHeaders.add method. The function accumulates values using string concatenation when the same header name is repeated, causing a Denial of Service (DoS). Due to Python string immutability, each concatenation copies the entire string, resulting in O(n²) time complexity. The severity can vary from high if max_header_size has been increased from its default, to low if it has its default value of 64KB. This issue is fixed in version 6.5.3.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 12, 2025Tornado is a Python web framework and asynchronous networking library.CVE-2025-67724 · Other software · tornadoweb · reported by GitHubMedium 5.4
Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, the supplied reason phrase is used unescaped in HTTP headers (where it could be used for header injection) or in HTML in the default error page (where it could be used for XSS) and can be exploited by passing untrusted or malicious data into the reason argument. Used by both RequestHandler.set_status and tornado.web.HTTPError, the argument is designed to allow applications to pass custom "reason" phrases (the "Not Found" in HTTP/1.1 404 Not Found) to the HTTP status line (mainly for non-standard status codes). This issue is fixed in version 6.5.3.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 15, 2025Tornado is a Python web framework and asynchronous networking library.CVE-2025-47287 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous. All versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default. Upgrade to Tornado version 6.50 to receive a patch. As a workaround, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 7, 2025An issue in Docmosis Tornado v.2.9.7 and before allows a remote attacker to execute arbitrary code via a crafted script to the UNC path inputCVE-2024-42733 · Other software · Docmosis · reported by MITRECritical 9.8
An issue in Docmosis Tornado v.2.9.7 and before allows a remote attacker to execute arbitrary code via a crafted script to the UNC path input
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 22, 2024Tornado is a Python web framework and asynchronous networking library.CVE-2024-52804 · Other software · tornadoweb · reported by GitHubHigh 7.5
Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.
- Product
- tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 25, 2023Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and conduCVE-2023-28370 · Other software · tornadoweb · reported by vultures@jpcert.or.jpMedium 6.1
Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and conduct a phishing attack by having user access a specially crafted URL.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 28, 2023An issue was discovered in Docmosis Tornado prior to version 2.9.5.CVE-2023-25266 · Other software · Docmosis · reported by MITREHigh 8.8
An issue was discovered in Docmosis Tornado prior to version 2.9.5. An authenticated attacker can change the Office directory setting pointing to an arbitrary remote network path. This triggers the execution of the soffice binary under the attackers control leading to arbitrary remote code execution (RCE).
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfrycos.github.ioresources.docmosis.com
Feb 28, 2023Docmosis Tornado <= 2.9.4 is vulnerable to Directory Traversal leading to the disclosure of arbitrary content on the file system.CVE-2023-25265 · Other software · Docmosis · reported by MITREHigh 7.5
Docmosis Tornado <= 2.9.4 is vulnerable to Directory Traversal leading to the disclosure of arbitrary content on the file system.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfrycos.github.ioresources.docmosis.com
Feb 28, 2023An issue was discovered in Docmosis Tornado prior to version 2.9.5.CVE-2023-25264 · Other software · Docmosis · reported by MITREHigh 7.5
An issue was discovered in Docmosis Tornado prior to version 2.9.5. An unauthenticated attacker can bypass the authentication check filter completely by introducing a specially crafted request with relative path segments.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfrycos.github.ioresources.docmosis.com
Jan 24, 2020Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackersCVE-2014-9720 · Other software · Tornadoweb · reported by MITREMedium 6.5
Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comtornadoweb.org
May 23, 2012CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headCVE-2012-2374 · Other software · Tornadoweb · reported by Red HatMedium 5
CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.
- Product
- Tornado
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comsecunia.com
Jul 6, 2010Multiple cross-site scripting (XSS) vulnerabilities in TornadoStore 1.4.3 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) CVE-2010-1328 · Other software · Tornadostore · reported by MITREMedium 4.3
Multiple cross-site scripting (XSS) vulnerabilities in TornadoStore 1.4.3 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) tipo or (2) destino parameter to login_registrese.php3 in the Services section, (3) the rubro parameter to precios.php3 in the Products section, (4) the arti parameter to recomenda_articulo.php3 in the Products section, (5) the descrip parameter in a profile action to control/abm_det.php3 in the e-Commerce section, (6) the tit parameter in a delivery_courier action to control/abm_list.php3 in the e-Commerce section, or (7) the tit parameter in an usuario action to control/abm_det.php3 in the e-Commerce section.
- Product
- Tornadostore
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbonsai-sec.comsecurityfocus.com
Jul 6, 2010Multiple SQL injection vulnerabilities in TornadoStore 1.4.3 and earlier allow remote attackers to execute arbitrary SQL commands via (1) the marca parameter toCVE-2010-1327 · Other software · Tornadostore · reported by MITREHigh 7.5
Multiple SQL injection vulnerabilities in TornadoStore 1.4.3 and earlier allow remote attackers to execute arbitrary SQL commands via (1) the marca parameter to precios.php3 or (2) the where parameter in a delivery_courier action to control/abm_list.php3.
- Product
- Tornadostore
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbonsai-sec.comsecurityfocus.com
Nov 28, 2008Cross-site scripting (XSS) vulnerability in searcher.exe in Tornado Knowledge Retrieval System 4.2 and earlier allows remote attackers to inject arbitrary web sCVE-2008-5264 · Other software · Tornado · reported by MITREMedium 4.3
Cross-site scripting (XSS) vulnerability in searcher.exe in Tornado Knowledge Retrieval System 4.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the p parameter in a root action.
- Product
- Tornado Knowledge Retrieval System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comsecurityreason.com
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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