Is CVE-2026-102275 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-102275?

CVE-2026-102275 has a CVSS v3 severity of MEDIUM (6.5).

Back

CVE-2026-102275

Description

PyJWT is a Python implementation of JSON Web Token standards. From 2.1.0 until 2.15.0, PyJWT OKPAlgorithm.from_jwk in jwt/algorithms.py is affected because private-JWK import path does not compare the public key derived from d with x. This occurs when an OKP private JWK supplies non-corresponding x and d components. As a result, identity derived from x can differ from operations performed with d. Consequently, if an integration also accepts private key parameters from a proof header without rejecting them, an attacker may use a stolen sender-constrained token without the legitimate private key. This issue is fixed in version 2.15.0.