PyJWT RSAAlgorithm.from_jwk() DoS

The vulnerability of the RSAAlgorithm.fromjwk function in the jwt/apijwk.py scenario of the PyJWT library is related to insufficient handling of exceptional states. Exploiting this vulnerability could allow a malicious actor to cause service failures...

PYSEC-2026-4152 PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

Summary A malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version - Package: PyJWT PyPI, ecosystem pip - Files...

PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

SummaryA malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version- Package: PyJWT PyPI, ecosystem pip- Files:...

Linux Distros Unpatched Vulnerability : CVE-2026-102274

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK...

SUSE CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

Summary A malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version - Package: PyJWT PyPI, ecosystem pip - Files...

GHSA-W6J9-CWV2-H6WQ PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set

Summary A malformed RSA JWK inside a JWK Set aborts parsing of the entire set instead of being skipped, because RSAAlgorithm.fromjwk can raise a plain ValueError that isn't caught by PyJWKSet's per-key error-skipping logic. Affected component / version - Package: PyJWT PyPI, ecosystem pip - Files...

DEBIAN-CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

UBUNTU-CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

CVE-2026-102274

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

CVE-2026-102274

The PyJWT library (versions 2.9.0 through 2.13.0 ) is vulnerable to a denial-of-service condition due to insufficient handling of exceptional states in RSAAlgorithm.from_jwk. When parsing a JWK Set , a malformed RSA JWK with an invalid d value and missing CRT parameters causes cryptography to rai...

CVE-2026-102274: Improper Handling of Exceptional Conditions

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.fromjwk in jwt/apijwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable...

PT-2026-102366

Name of the Vulnerable Software and Affected Versions PyJWT versions 2.9.0 through 2.13.x Description PyJWT fails to handle a ValueError triggered by the RSAAlgorithm.from jwk function in jwt/api jwk.py when processing malformed RSA JSON Web Key JWK components. If a JWK Set contains a single...