Zurück zur CVE-Übersicht
CVE-2026-102272
HIGH(7.4)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Risk Signal Score19/100 — NIEDRIG
- CVSS 7.4 — Hoch
Erwähnungen (letzte 60 Tage)
Artikel
EPSS-Score
0.2%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
7.4
Technische Schwere
Beschreibung
PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.prepare_key in jwt/algorithms.py is affected because raw-JWK detector does not normalize accepted Unicode byte-order marks before checking for JSON. This occurs when a public JWK is prefixed with a UTF-8 BOM and used in a mixed-algorithm verification path. As a result, public JWK bypasses asymmetric-key detection and becomes the HMAC secret. Consequently, an attacker who knows the public key can forge authenticated tokens. This issue is fixed in version 2.14.0.
Betroffene Produkte
- cpe:2.3:a:pyjwt_project:pyjwt:2.13.0:*:*:*:*:*:*:*