CVE-2026-102269: PyJWT: Non-canonical signature segments enable raw-token revocation bypass

Overview

Severity

Medium (CVSS 4.8)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-30

EPSS Score

0.20% (percentile: 8.6%)

Affected Products (1)

Other

• 0-17084

Revision History

• 2026-09-30: Information published.