GHSA-63HF-3VF5-4WQF 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 in request 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...

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...

PYSEC-2026-2102

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...

AZL-81779 CVE-2026-34520 affecting package python-aiohttp 3.6.2-3

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...

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...

PYSEC-2026-2102

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...

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...

CVE-2026-34520

The aiohttp asynchronous HTTP client/server framework for Python and asyncio is vulnerable to a security bypass and header injection due to a flaw in its C parser (the default for most installations). Specifically, the parser accepts null bytes and control characters in response headers, allowing...

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...

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-2026-34441

A flaw was found in cpp-httplib, a C++11 HTTP/HTTPS library. This vulnerability, known as HTTP Request Smuggling, allows a remote attacker to embed an arbitrary HTTP request within the body of a GET request. The server's static file handler fails to consume the entire request body, leaving unread...

PT-2026-36763

Name of the Vulnerable Software and Affected Versions osrg GoBGP versions prior to 4.4.0 Description A remote denial of service can occur in the SRv6 L3 Service component. The issue exists within the SRv6L3ServiceAttribute.DecodeFromBytes function located in the pkg/packet/bgp/prefix sid.go file,...

aiohttp 注入漏洞

aiohttp is an open-source framework developed by aio-libs, used for asynchronous HTTP client/server interactions with asyncio and Python. Prior to version 3.13.4 of AIOHTTP, there was an injection vulnerability; this vulnerability stemmed from the C parser allowing empty bytes and control...

CVE-2026-5123

A flaw was found in osrg GoBGP. A remote attacker could exploit an off-by-one error in the DecodeFromBytes function by manipulating specific input data. This vulnerability may lead to a denial of service, making the affected system unavailable. Mitigation Mitigation for this issue is either not...

EUVD-2026-17531

PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely. PAGI::Middleware::Session::Store::Cookie attempts to read bytes from the /dev/urandom device directly. If that fails for example, on systems without the device, such as Windows, then it...

CVE-2026-5087

PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely. PAGI::Middleware::Session::Store::Cookie attempts to read bytes from the /dev/urandom device directly. If that fails for example, on systems without the device, such as Windows, then it...