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CVE-2026-102275

PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
jpadilla / pyjwtaffected >= 2.1.0, < 2.15.0

CWE

CWE-345, CWE-348

References

ADP enrichment

CISA-ADP

No English description supplied.