Improper Verification of Cryptographic Signature

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the verifysignature method in jwt/apijws.py when a PyJWK object is used to verify an HMAC-signed token. In the vulnerable code path,...

Improper Verification of Cryptographic Signature

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JsonWebSignature.deserializejson method in the JWS JSON serialization handling. An attacker can have unsigned or...

Improper Verification of Cryptographic Signature

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the preparekey method in jwt/algorithms.py, where DER-encoded public keys are accepted as HMAC secrets without rejection. An attacker who...

CVE-2026-102267

A flaw was found in PyJWT. When retrieving cryptographic keys from a JSON Web Key Set JWKS endpoint, PyJWKClient fails to validate HTTP redirect destinations against trusted domain boundaries. A remote attacker who can influence the response of a trusted endpoint can redirect key requests to an...

AZL-105224 CVE-2026-102272 affecting package python-jwt 2.13.0-1

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

CVE-2026-102272

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

UBUNTU-CVE-2026-102272

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

EUVD-2026-88540

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

CVE-2026-102272

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

CVE-2026-102272 PyJWT BOM Bypass

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

CVE-2026-102272 PyJWT BOM Bypass

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, HMACAlgorithm.preparekey 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 ...

CVE-2026-96760

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

DEBIAN-CVE-2026-96760

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

CVE-2026-96760

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

UBUNTU-CVE-2026-96760

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

CVE-2026-96760

The Authlib library (v1.7.2 and below) contains a signature verification bypass vulnerability within the JsonWebSignature.deserialize_json() method. When processing a JSON Serialization JWS object, the method returns the payload as successfully verified without validating a cryptographic signatur...

EUVD-2026-88465

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

CVE-2026-96760 Authlib library contains a signature‑verification bypass vulnerability

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

CVE-2026-96760

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...

CVE-2026-96760 Authlib library contains a signature‑verification bypass vulnerability

Authlib v1.7.2 and below contains a signature verification bypass vulnerability. The JsonWebSignature.deserializejson method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key...