Urllib3 HTTPConnection Unauthenticated Access

The vulnerability of the HTTPConnection.urlopen method in the Python HTTP library, Urllib3, is related to insufficient protection of sensitive data. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

OPENSUSE-SU-2026:11183-1 python313-joserfc-1.7.2-2.1 on GA media

These are all security issues fixed in the python313-joserfc-1.7.2-2.1 package on the GA media of openSUSE Tumbleweed...

urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers

A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via ProxyManager.connectionfromurl.urlopen with assertsamehost=False, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitiv...

LiteLLM Detection

A LiteLLM Python library is installed on the remote host. Note that Nessus has relied upon on the application's self-reported version number. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid324116; scriptversion"1.1";...

CVE-2026-57585 MessagePack: Out-of-bounds read/crash on Unpacker reuse after caught error

MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack. If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This...

PT-2026-53226

Name of the Vulnerable Software and Affected Versions MCP Python SDK versions prior to 1.27.2 Description A missing authorization issue exists in the official Model Context Protocol Python SDK. On multi-client servers, the default request handlers registered by the experimental enable tasks helpe...

PT-2026-53225

Name of the Vulnerable Software and Affected Versions mcp Python SDK versions prior to 1.27.2 Description Principal confusion exists in the HTTP transports of the mcp Python SDK. Specifically, the SSE and Streamable HTTP stateful mode routed sessions fail to verify if the principal matches the...

BIT-PYTHON-2026-9669 bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow

bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer...

Astra Linux – Vulnerability in python-urllib3

urllib3 is a HTTP client library for Python. The streaming API of urllib3 is designed for efficiently handling large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP...

ROS-20260624-73-0045

The vulnerability in python-aiohttp is related to the lack of protection for service data. Exploiting this vulnerability can allow a remote attacker to gain unauthorized access to protected information...

PSF-2026-30

tarfile.extractall with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself. The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower...

ALSA-2026:28159 Important: python3.12-urllib3 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

urllib3: urllib3: Unbounded decompression chain leads to resource exhaustion

A flaw was found in urllib3 Python library that could lead to a Denial of Service condition. A remote, malicious server can exploit this flaw by responding to a client request with an HTTP message that uses an excessive number of chained compression algorithms. This unlimited decompression chain...

CVE-2026-49461

CVE-2026-49461 affects the Python PDF library pypdf . The vulnerability occurs before version 6.12.2 and lets an attacker craft a PDF whose page contains a form XObject with self-references, causing large memory usage during text extraction. Impact is memory-related and can affect systems process...

UBUNTU-CVE-2026-54293

NLTK Natural Language Toolkit is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Prior to 3.10.0-rc1, nltk.data.load in NLTK is vulnerable to path traversal via URL-encoded path separators and traversal segments...

AZL-90662 CVE-2026-54280 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a payload is using an open file or similar limited resource, then an attacker may be able to cause...

AZL-90656 CVE-2026-50269 affecting package python-aiohttp 3.6.2-3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.0, attacker-controlled input included into multipart/payload headers can be used to modify a request to inject additional headers or similar. In the unlikely situation that an application is passing...

UBUNTU-CVE-2026-53539

Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, when parsing application/x-www-form-urlencoded bodies, QuerystringParser located the field separator with a two step lookup: it first scanned the entire remaining buffer for &, and only when no & existed anywhere ahead...

CVE-2026-54293

NLTK Natural Language Toolkit is a suite of open source Python modules, data sets, and tutorials supporting research and development in Natural Language Processing. Prior to 3.10.0-rc1, nltk.data.load in NLTK is vulnerable to path traversal via URL-encoded path separators and traversal segments...

urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers

A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via ProxyManager.connectionfromurl.urlopen with assertsamehost=False, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitiv...