GHSA-h533-5v22-8vcp: firebase/php-jwt: "None" Algorithm treated as valid on tokens

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1. GitHub Advisory Database
2. GitHub Reviewed
3. GHSA-h533-5v22-8vcp

firebase/php-jwt: “None” Algorithm treated as valid on tokens

Critical severity GitHub Reviewed Published May 15, 2024 to the GitHub Advisory Database • Updated May 15, 2024

Package

composer firebase/php-jwt (Composer)

Affected versions

< 2.0.0

Description

Several widely-used JSON Web Token (JWT) libraries, including node-jsonwebtoken, pyjwt, namshi/jose, php-jwt, and jsjwt, are affected by critical vulnerabilities that could allow attackers to bypass the verification step when using asymmetric keys (RS256, RS384, RS512, ES256, ES384, ES512).

References

• firebase/php-jwt@b2c2be6
• https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries
• https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries
• https://github.com/FriendsOfPHP/security-advisories/blob/master/firebase/php-jwt/2015-04-02.yaml

Published to the GitHub Advisory Database

May 15, 2024

Last updated

May 15, 2024