DEBIAN-CVE-2026-48523

PyJWT is a JSON Web Token implementation in Python. From 2.9.0 to 2.12.1, there is a verifier-side algorithm allow-list bypass when jwt.decode or jwt.decodecomplete are called with a PyJWK key. The token header alg is checked against the caller-supplied algorithms allow-list, but signature...

CVE-2026-48524 PyJWT: PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values (DoS)

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient.getsigningkey forces a fresh HTTP request to the JWKS endpoint for every JWT with an unknown kid value, with no rate limiting. Since kid comes from the unverified token header, an attacker can trigger unlimited...

pyjwt 代码问题漏洞

PyJWT is a Python library developed by José Padilla of the United States. It allows for the encoding and decoding of JSON Web Tokens JWTs. Prior to version 2.13.0, there were code vulnerabilities in PyJWT. These vulnerabilities stemmed from PyJWKClient directly passing the uri parameter to...

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. Prior to version 2.13.0, pyjwt had a security vulnerability. This vulnerability stemmed from the function PyJWKClient.getsigningkey, which forced each JWT...

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...

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...

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...

Incorrect Comparison

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Incorrect Comparison due to an incorrect string comparison in the iss verification process. Remediation Upgrade PyJWT to version 2.10.1 or higher. References - GitHub Commit - Vulnerable Cod...

PT-2024-40234 · Unknown +1 · Vng-Api-Common +1

Name of the Vulnerable Software and Affected Versions: vng-api-common versions prior to 1.12.2 Description: This issue is related to a privilege escalation vulnerability, although its impact is negligible and entirely theoretical. It involves the verification of client-supplied JSON Web Tokens JW...

Nacos 2.0.3 Access Control

Exploit Title: Nacos 2.0.3 - Access Control vulnerability Date: 2023-01-17 Exploit Author: Jenson Zhao Vendor Homepage: https://nacos.io/ Software Link: https://github.com/alibaba/nacos/releases/ Version: Up to including2.0.3 Tested on: Windows 10 CVE : CVE-2021-43116 Required before execution: p...

Amazon Linux 2023 : python3-jwt, python3-jwt+crypto (ALAS2023-2023-076)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-076 advisory. 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 signin...

UBUNTU-CVE-2022-29217

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 library requires that the application chooses what algorithms are supported. The application can...

Python 加密问题漏洞

pyjwt is a Python library by the individual developer José Padilla in the United States. It allows encoding and decoding of JSON Web Tokens JWT. A cryptographic issue vulnerability exists in pyjwt versions 1.5.0 - 2.3.0, which stems from the use of a corrupted or risky cryptographic algorithm. A...