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...

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

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

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...

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

PyJWT prior to 2.12.0 does not validate the crit header (RFC 7515 §4.1.11). If a JWS contains a crit array with extensions PyJWT cannot understand, the library accepts the token instead of rejecting it, violating the MUST requirement. This CVE affects PyJWT and is fixed in version 2.12.0. Remedia...

CVE-2026-32597 PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)

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...

pyjwt 安全漏洞

pyjwt is a Python library developed by José Padilla from the United States. It allows for the encoding and decoding of JSON Web Tokens JWTs. pyjwt has security vulnerabilities, stemming from the lack of validation for the crit header parameter. This vulnerability may allow the acceptance of JWS...

TencentOS Server 4: python-jwt (TSSA-2026:0119)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0119 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

Security Bulletin: IBM Edge Data Collector uses PyJWT-2.10.0-py3-none-any.whl which is vulnerable to CVE-2024-53861.

Summary IBM Edge Data Collector uses PyJWT-2.10.0-py3-none-any.whl which is vulnerable to CVE-2024-53861. This bulletin contains information regarding the vulnerability and its fixture. Vulnerability Details CVEID:CVE-2024-53861 DESCRIPTION: pyjwt is a JSON Web Token implementation in Python. An...

Malicious code in pyjwt (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 1303df275ef90069cbd133d9486d1bd0732a401442c275a2c1ca4765fa940d5f Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

MAL-2025-48036 Malicious code in pyjwt (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 1303df275ef90069cbd133d9486d1bd0732a401442c275a2c1ca4765fa940d5f Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

EUVD-2025-32985

Malicious code in pyjwt npm...

Malicious Package

Overview pyjwt is a malicious package. This package contains malicious code, and its content was removed from the official package manager. While this package might be attempting to impersonate a valid organization, there is no connection between that organization and this package authorship...