python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

A flaw was found in Python's decompression modules, including lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is...

python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API

A flaw was found in the Python webbrowser.open API. If a specially crafted URL containing "%action" is processed, an attacker could bypass a previous mitigation for CVE-2026-4519. This bypass allows for command injection into the underlying shell, potentially leading to arbitrary code execution...

Important: Red Hat Security Advisory: python3.9 security update

An update for python3.9 is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

[SECURITY] Fedora 44 Update: uv-0.11.15-1.fc44

An extremely fast Python package and project manager, written in Rust. Highlights: =E2=80=A2 A single tool to replace pip, pip-tools, pipx, poetry, pyenv, twi ne, virtualenv, and more. =E2=80=A2 10-100x faster than pip. =E2=80=A2 Provides comprehensive project management, with a universal lockf...

[SECURITY] Fedora 44 Update: python-uv-build-0.11.15-1.fc44

This package is a slimmed down version of uv containing only the build backend...

[SECURITY] Fedora 43 Update: uv-0.11.15-1.fc43

An extremely fast Python package and project manager, written in Rust. Highlights: =E2=80=A2 A single tool to replace pip, pip-tools, pipx, poetry, pyenv, twi ne, virtualenv, and more. =E2=80=A2 10-100x faster than pip. =E2=80=A2 Provides comprehensive project management, with a universal lockf...

[SECURITY] Fedora 43 Update: python-uv-build-0.11.15-1.fc43

This package is a slimmed down version of uv containing only the build backend...

pyjwt: PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)

A missing verification step has been discovered in PyJWT. PyJWT does not validate the crit Critical Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token instead of rejecting it. This...

RockyLinux 9 : python3.9 (RLSA-2026:19216)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19216 advisory. python: Python: Command-line option injection in webbrowser.open via crafted URLs CVE-2026-4519 python: Python: Arbitrary code execution or information...

Debian dla-4605 : python-flask-httpauth-doc - security update

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4605 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4605-1 [email protected] https://www.debian.org/lts/security/...

Fedora 44 : python-uv-build / rust-astral-tokio-tar / etc (2026-0b1aaac651)

The remote Fedora 44 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-0b1aaac651 advisory. Update uv and python-uv-build to 0.11.5, fixing GHSA-3cv2-h65g-fgmm and GHSA-4gg8-gxpx-9rph. Tenable has extracted the preceding description block directly...

PT-2026-44398

Name of the Vulnerable Software and Affected Versions PyJWT versions prior to 2.13.0 Description PyJWT is a JSON Web Token implementation in Python. When the verifier decodes JSON Web Tokens while supporting both asymmetric and HMAC algorithms, the library fails to validate the use of JSON Web Ke...

PT-2026-44396

Name of the Vulnerable Software and Affected Versions PyJWT versions prior to 2.13.0 Description PyJWT is a JSON Web Token implementation in Python. The get signing key function in PyJWKClient forces a new HTTP request to the JWKS endpoint for every JWT containing an unknown kid value, without...

PT-2026-44397

Name of the Vulnerable Software and Affected Versions PyJWT versions 2.8.0 through 2.12.1 Description When verifying detached JWS tokens using the unencoded-payload option "b64": false, RFC 7797, the software performs Base64URL decoding of the compact-serialization payload segment before enforcin...

Python Liquid 路径遍历漏洞

Python Liquid is a Python engine developed by James for processing Liquid templates. Versions of Python Liquid prior to 2.2.0 had a path traversal vulnerability. This vulnerability stemmed from the lack of protection in FileSystemLoader and CachingFileSystemLoader against reading absolute paths,...

PT-2026-45982

Python Liquid is a Python engine for the Liquid template language. Prior to 2.2.0, the built-in FileSystemLoader and CachingFileSystemLoader do not guard against reading files outside their search paths when given an absolute path to resolve. This allows malicious template authors to load and...

RockyLinux 9 : python3.12 (RLSA-2026:19177)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19177 advisory. expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing CVE-2025-59375...

RockyLinux 9 : python-markdown (RLSA-2026:19366)

The remote RockyLinux 9 host has a package installed that is affected by a vulnerability as referenced in the RLSA-2026:19366 advisory. python-markdown: denial of service via malformed HTML-like sequences CVE-2025-69534 Tenable has extracted the preceding description block directly from the...

Fedora 43 : python-uv-build / rust-astral-tokio-tar / etc (2026-f8487121bd)

The remote Fedora 43 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-f8487121bd advisory. Update uv and python-uv-build to 0.11.5, fixing GHSA-3cv2-h65g-fgmm and GHSA-4gg8-gxpx-9rph. Tenable has extracted the preceding description block directly...

RockyLinux 9 : python-jwcrypto (RLSA-2026:19197)

The remote RockyLinux 9 host has a package installed that is affected by a vulnerability as referenced in the RLSA-2026:19197 advisory. JWCrypto: python-cryptography: python: JWCrypto: Memory exhaustion via crafted compressed JWE tokens CVE-2026-39373 Tenable has extracted the preceding descripti...