CVE-2026-32597

HIGH

7.5

Descripcion

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT 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 PyJWT does not understand, the library accepts the token instead of rejecting it. This violates the MUST requirement in the RFC. This vulnerability is fixed in 2.12.0.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/13/2026

Ultima modificacion3/19/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

pyjwt_project:pyjwt

Debilidades (CWE)

CWE-345CWE-863

Referencias

https://github.com/jpadilla/pyjwt/security/advisories/GHSA-752w-5fwx-jx9f(security-advisories@github.com)

https://github.com/jpadilla/pyjwt/security/advisories/GHSA-752w-5fwx-jx9f(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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