CVE-2026-32597

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/13/2026

Zuletzt geandert3/19/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

pyjwt_project:pyjwt

Schwachen (CWE)

CWE-345CWE-863

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.