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THREAT OPS › Threat News › [NVD] CVE-2026-32597 (HIGH 7.5) — PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token i

[NVD] CVE-2026-32597 (HIGH 7.5) — PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token i

lownvdPublished 2026-03-13

CVE-2026-32597 CVSS: 7.5 HIGH Published: 2026-03-13T19:55:09.500

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token instead of rejecting it. This violates the MUST require

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-32597