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CVE-2026-35042

fast-jwt

Descripción

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.

CVSS 7.5EPSS 0.155%Riesgo 0.76
Ver fuente
Publicación
2026-04-06 17:17:13
Versiones afectadas
<=6.1.0
Tipo
Package
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N