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[pkg-vuln] CVE-2026-102274 in pyjwt@2.13.0 #901

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opened 2026-09-30 06:01:59 +00:00 by kert · 0 comments
kert commented 2026-09-30 06:01:59 +00:00
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Severity: MEDIUM
Package: pyjwt @ 2.13.0
Fixed in: 2.14.0

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.from_jwk in jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable keys. As a result, one malformed member aborts construction of the entire PyJWKSet. Consequently, applications can experience authentication failures or request-level denial of service. This issue is

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-102274

**Severity:** MEDIUM **Package:** `pyjwt` @ `2.13.0` **Fixed in:** `2.14.0` 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.from_jwk in jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable keys. As a result, one malformed member aborts construction of the entire PyJWKSet. Consequently, applications can experience authentication failures or request-level denial of service. This issue is **Reference:** https://nvd.nist.gov/vuln/detail/CVE-2026-102274
kert added this to the P21: Package Supply Chain — inventory, mirrors, drift, vuln scanning milestone 2026-09-30 06:01:59 +00:00
kert added the qualityci labels 2026-09-30 06:01:59 +00:00
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Reference: homelab/stack#901
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