Is CVE-2026-32597 actively exploited?

No active exploitation of CVE-2026-32597 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32597 be exploited remotely?

Yes. CVE-2026-32597 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32597?

CVE-2026-32597 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-32597

HIGH

CVE-2026-32597

CWE-345Published: March 13, 2026· Updated: Mar 19, 2026

7.5

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.6th

Official Description

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 requirement in the RFC. This vulnerability is fixed in 2.12.0.

NVD Source

Technical Analysis

CVE-2026-32597 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.