CVE-2026-48522

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen which uses Python stdlib's default OpenerDirector registering HTTPHandler, HTTPSHandler, FTPHandler, FileHandler, and DataHandler. There is currently no...

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...

RHEL 10 : fence-agents (RHSA-2026:13916)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:13916 advisory. The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or...

SUSE SLED15 / SLES15 Security Update : python-PyJWT (SUSE-SU-2026:1400-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:1400-1 advisory. - CVE-2026-32597: Fixed unknown crit header extensions accepts bsc1259616. Tenable has extracted the preceding...

Important Photon OS Security Update - PHSA-2026-5.0-91-0816

Updates of 'rubygem-rdiscount', 'python3-PyJWT' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2026-4.0-0995

Updates of 'python3-PyJWT', 'libtiff', 'python3-pyasn1', 'rubygem-rdiscount', 'rubygem-activesupport', 'nodejs' packages of Photon OS have been released...

Medium: python-jwt

Issue Overview: A missing verification step has been discovered in PyJWT. PyJWT does not validate the crit Critical Header Parameter defined in RFC 7515 SS4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token instead of...

Amazon Linux 2023 : python3-jwt, python3-jwt+crypto (ALAS2023-2026-1467)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1467 advisory. pyjwt v2.10.1 was discovered to contain weak encryption. CVE-2025-45768 Tenable has extracted the preceding description block directly from the tested product security advisory. Note that Nessus has no...

Medium: python-jwt

Issue Overview: pyjwt v2.10.1 was discovered to contain weak encryption. CVE-2025-45768 Affected Packages: python-jwt Issue Correction: Run dnf update python-jwt --releasever 2023.10.20260302 or dnf update --advisory ALAS2023-2026-1467 --releasever 2023.10.20260302 to update your system. More...

RHEL 8 : python-jwt (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched. - python-jwt: Key confusion through non-blocklisted public key formats CVE-2022-29217 Note that Nessus has not tested...

RHEL 9 : python-jwt (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 9 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched. - python-jwt: Key confusion through non-blocklisted public key formats CVE-2022-29217 Note that Nessus has not tested...

Exploit for Authentication Bypass by Spoofing in Python-Jwt_Project Python-Jwt

CVE-2022-39227 CVE-2022-39227 : Proof of Concept Proof of co...

CBL Mariner 2.0 Security Update: python-jwt (CVE-2022-39227)

The version of python-jwt installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-39227 advisory. - python-jwt is a module for generating and verifying JSON Web Tokens. Versions prior to 3.3.4 are subject...

Medium: python-jwt

Issue Overview: A vulnerability was found in python-jwt. This issue happens when PyJWT supports multiple different JWT signing algorithms. This flaw allows an attacker submitting the JWT token to choose the used signing algorithm, leading to key confusion through non-blocklisted public key format...

Amazon Linux 2022 : python-jwt (ALAS2022-2022-241)

It is, therefore, affected by a vulnerability as referenced in the ALAS2022-2022-241 advisory. - PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT...

CVE-2022-39227 affecting package python-jwt for versions less than 2.4.0-2

CVE-2022-39227 affecting package python-jwt for versions less than 2.4.0-2. A patched version of the package is available...

CVE-2022-39227 affecting package python-jwt 2.4.0-1

CVE-2022-39227 affecting package python-jwt 2.4.0-1. A patched version of the package is available...

Huawei EulerOS: Security Advisory for python-jwt (EulerOS-SA-2022-2434)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2022 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...

Huawei EulerOS: Security Advisory for python-jwt (EulerOS-SA-2022-2421)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2022 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...

EulerOS 2.0 SP10 : python-jwt (EulerOS-SA-2022-2434)

According to the versions of the python-jwt package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the...