CVE-2026-54277

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the maxlinesize check in parts of an HTTP request in the C parser. If using the optimised C parser the default in pre-built wheels, then an attacker may be able to send...

CVE-2026-54277

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the maxlinesize check in parts of an HTTP request in the C parser. If using the optimised C parser the default in pre-built wheels, then an attacker may be able to send...

Linux Distros Unpatched Vulnerability : CVE-2026-54277

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the maxlinesize check in parts of an...

GHSA-63HW-FMQ6-XXG2 aiohttp: C HTTP Parser Bypasses max_line_size for Fragmented Lines

Summary It is possible to bypass the maxlinesize check in parts of an HTTP request in the C parser. Impact If using the optimised C parser the default in pre-built wheels, then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potential...

PT-2026-49591

Name of the Vulnerable Software and Affected Versions AIOHTTP versions prior to 3.14.1 Description An issue exists in the C parser of the asynchronous HTTP client/server framework where the max line size check can be bypassed in parts of an HTTP request. When using the optimized C parser, which i...

GraphQL-Ruby's Ruby lexer does not count comment tokens for the purposes of max_query_string_tokens

GraphQL-Ruby's maxquerystringtokens configuration didn't count comment tokens against the limit, allowing strings to be processed even after the configured maximum had actually been reached. In patched versions, the Ruby lexer does count these tokens. GraphQL-CParser is not affected by this...

AIOHTTP's C parser (llhttp) accepts null bytes and control characters in response header values - header injection/security bypass

Summary The C parser the default for most installs accepted null bytes and control characters is response headers. Impact An attacker could send header values that are interpreted differently than expected due to the presence of control characters. For example, request.url.origin may return a...

DEBIAN-CVE-2026-34520

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser the default for most installs accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4...

CVE-2026-34520

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser the default for most installs accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4...

CVE-2026-34520 AIOHTTP: C parser (llhttp) accepts null bytes and control characters in response header values - header injection / security bypass

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser the default for most installs accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4...

PT-2026-29609

Name of the Vulnerable Software and Affected Versions AIOHTTP versions prior to 3.13.4 Description The C parser, used by default in most installations, allowed null bytes and control characters within response headers. An attacker could leverage this to send header values that are interpreted...

[SECURITY] Fedora 44 Update: python-pycparser-2.22-8.fc44

pycparser is a complete parser for the C language, written in pure Python. It is a module designed to be easily integrated into applications that need to parse C source code...

EUVD-2022-4611

Malicious code in bioql PyPI...

libxml2: Multiple Vulnerabilities

Background libxml2 is the XML C parser and toolkit developed for the GNOME project. Description Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE identifiers for details. Workaround The...

libxml2: Multiple Vulnerabilities

Background libxml2 is the XML C parser and toolkit developed for the GNOME project. Description Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE identifiers for details. Workaround The...

libxml2: Multiple Vulnerabilities

Background libxml2 is the XML C parser and toolkit developed for the GNOME project. Description Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE identifiers for details. Workaround The...

libxml2: Multiple vulnerabilities

Background libxml2 is the XML eXtended Markup Language C parser and toolkit initially developed for the Gnome project. Description Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE...

UBUNTU-CVE-2018-1311

The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of external DTDs. This flaw has not been addressed in the maintained version of the library and has no current mitigation other than to disable DTD processing. This can be accomplished via...

shibboleth-sp -- vulnerable to forged user attribute data

Shibboleth consortium reports: Shibboleth SP software vulnerable to additional data forgery flaws The XML processing performed by the Service Provider software has been found to be vulnerable to new flaws similar in nature to the one addressed in an advisory last month. These bugs involve the use...

libxml2: Multiple vulnerabilities

Background libxml2 is the XML C parser and toolkit developed for the Gnome project. Description Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact A remote attacker could entice a user to open a specially crafted docume...