{"id":"GHSA-h533-5v22-8vcp","aliases":[],"status":"published","title":"firebase/php-jwt: \"None\" Algorithm treated as valid on tokens","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).","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2024-05-15T21:38:49Z","modified":"2024-11-29T05:32:23Z","fixes":[{"ecosystem":"Packagist","package":"firebase/php-jwt","fixed_in":["2.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"firebase/php-jwt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"firebase/php-jwt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}],"versions":["1.0.0"]}],"references":[{"url":"https://github.com/firebase/php-jwt/commit/b2c2be6a45fda769c8c2ffe5ec4259a9d1e46e5b","tags":["web"]},{"url":"https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries","tags":["web"]},{"url":"https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/firebase/php-jwt/2015-04-02.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h533-5v22-8vcp"},{"url":"https://github.com/firebase/php-jwt","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-h533-5v22-8vcp","title":"firebase/php-jwt: \"None\" Algorithm treated as valid on tokens","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).","status":"published","published":"2024-05-15T21:38:49Z","modified":"2024-05-15T21:38:50Z","updated_at":"2026-11-02T14:37:49.987036Z"}],"osv":[{"id":"GHSA-h533-5v22-8vcp","title":"firebase/php-jwt: \"None\" Algorithm treated as valid on tokens","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).","status":"published","published":"2024-05-15T21:38:49Z","modified":"2024-11-29T05:32:23.815899Z","updated_at":"2026-11-02T15:46:48.546324Z"}]}}