CVE-2026-32597: PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation)

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Mar
Released
2026-07-24
Last Updated
2026-08-08
EPSS Score
0.27% (percentile: 18.8%)

Affected Products (1)

Other

  • 20159-17084

Revision History

  • 2026-07-24: Information published.
  • 2026-08-08: Information published.