{"id":"GHSA-h533-5v22-8vcp","aliases":[],"title":"firebase/php-jwt: \"None\" Algorithm treated as valid on tokens","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","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).","severity":"critical","score":null,"published":"2024-05-15T21:38:49.000Z","modified":"2024-11-29T05:32:23.815Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"firebase/php-jwt","sources":[{"name":"OSV · GHSA-h533-5v22-8vcp","url":"https://osv.dev/vulnerability/GHSA-h533-5v22-8vcp"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"2.0.0"}],"type":"ECOSYSTEM"}],"versions":["1.0.0"],"fixed":["2.0.0"]}],"sourceAffected":[],"references":["https://github.com/firebase/php-jwt/commit/b2c2be6a45fda769c8c2ffe5ec4259a9d1e46e5b","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","https://github.com/firebase/php-jwt"],"sources":[{"name":"OSV","id":"GHSA-h533-5v22-8vcp","modified":"2024-11-29T05:32:23.815899Z","url":"https://osv.dev/vulnerability/GHSA-h533-5v22-8vcp"}],"assessments":[],"products":[],"remediation":[],"kev":{"status":"unavailable","checkedAt":"2026-10-28T13:35:32.756Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}