https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-08T04:42:05.300821+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-35042 CVE-2026-35042 — fast-jwt accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation) 2026-10-08T04:42:05.316937+00:00

Affected: nearform fast-jwt

fast-jwt provides fast JSON Web Token (JWT) implementation. In 6.1.0 and earlier, fast-jwt 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 fast-jwt does not understand, the library accepts the token instead of rejecting it. This violates the MUST requirement in the RFC.