Ubuntu: Security Advisory (USN-8133-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : PyJWT vulnerability (USN-8133-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8133-1 advisory. It was discovered that PyJWT did not validate the critical header parameter, contrary to the RFC...

USN-8133-1: PyJWT vulnerability

It was discovered that PyJWT did not validate the critical header parameter, contrary to the RFC specification expectations. A remote attacker could possibly use this issue to bypass certain authentication checks and restrictions...

SUSE-SU-2026:20879-1 Security update for python-PyJWT

This update for python-PyJWT fixes the following issues: Update to PyJWT 2.12.1: - CVE-2024-53861: prevent partial matching of the Issuer field bsc1234038. - CVE-2026-32597: validate the crit Header Parameter defined in RFC 7515 bsc1259616. Changelog: Update to 2.12.1: - Add missing...

SUSE-SU-2026:20934-1 Security update for python-PyJWT

This update for python-PyJWT fixes the following issue: Update to PyJWT 2.12.1: - CVE-2026-32597: PyJWT accepts unknown crit header extensions bsc1259616. Changelog: Update to 2.12.1: - Add missing typingextensions dependency for Python 3.11 in 1150 Update to 2.12.0: - Annotate PyJWKSet.keys for...

OPENSUSE-SU-2026:20431-1 Security update for python-PyJWT

This update for python-PyJWT fixes the following issue: Update to PyJWT 2.12.1: - CVE-2026-32597: PyJWT accepts unknown crit header extensions bsc1259616. Changelog: Update to 2.12.1: - Add missing typingextensions dependency for Python 3.11 in 1150 Update to 2.12.0: - Annotate PyJWKSet.keys for...

SUSE-SU-2026:20869-1 Security update for python-PyJWT

This update for python-PyJWT fixes the following issue: - CVE-2026-32597: validate the crit Header Parameter defined in RFC 7515 bsc1259616...

OPENSUSE-SU-2026:10397-1 python311-PyJWT-2.12.1-1.1 on GA media

These are all security issues fixed in the python311-PyJWT-2.12.1-1.1 package on the GA media of openSUSE Tumbleweed...

GHSA-752W-5FWX-JX9F PyJWT accepts unknown `crit` header extensions

Summary 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 violates the MUST requirement in the RFC. This is t...

AZL-93030 CVE-2026-32597 affecting package python-jwt for versions less than 2.13.0-1

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

DEBIAN-CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

PYSEC-2026-120

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

UBUNTU-CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

CVE-2026-32597: Insufficient Verification of Data Authenticity

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

Linux Distros Unpatched Vulnerability : CVE-2026-32597

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit Critical Header Parameter defined in RFC 7515 4.1.11. When...

CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...

CVE-2026-32597

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...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to improper validation of the crit header parameter. An attacker can bypass critical header checks by crafting a JSON Web Signature JWS token with unrecognized critical extensions. Po...

CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, 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...