GHSA-9gxv-x7rp-r2hc: gree/jose - "None" Algorithm treated as valid in tokens

May 15, 2024

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

auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries
auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries
github.com/FriendsOfPHP/security-advisories/blob/master/gree/jose/2016-08-30.yaml
github.com/advisories/GHSA-9gxv-x7rp-r2hc
github.com/nov/jose-php

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