[pkg-vuln] CVE-2026-102267 in pyjwt@2.13.0 #894

New Issue

kert · 2026-09-30T06:01:58Z

kert commented

2026-09-30 06:01:58 +00:00

Severity: HIGH
Package: pyjwt @ 2.13.0
Fixed in: 2.14.0

PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT PyJWKClient is affected because redirect destinations are not revalidated against the JWKS trust boundary. This occurs when a configured trusted JWKS endpoint returns an attacker-influenced redirect. As a result, PyJWKClient follows the redirect and consumes the redirected response as key material. Consequently, forwarded credentials may be disclosed or verification keys may be substituted. This issue is fixed i

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-102267

**Severity:** HIGH **Package:** `pyjwt` @ `2.13.0` **Fixed in:** `2.14.0` PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT PyJWKClient is affected because redirect destinations are not revalidated against the JWKS trust boundary. This occurs when a configured trusted JWKS endpoint returns an attacker-influenced redirect. As a result, PyJWKClient follows the redirect and consumes the redirected response as key material. Consequently, forwarded credentials may be disclosed or verification keys may be substituted. This issue is fixed i **Reference:** https://nvd.nist.gov/vuln/detail/CVE-2026-102267

kert added this to the P21: Package Supply Chain — inventory, mirrors, drift, vuln scanning milestone 2026-09-30 06:01:58 +00:00

kert added the quality ci labels 2026-09-30 06:01:58 +00:00

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Reference: homelab/stack#894