CVE-2026-102268: PyJWT: Asymmetric-PEM detection bypass: whitespace/line-ending-mutated public keys skip the HS/asymmetric confusion guard

Overview

Severity

Critical (CVSS 9.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-30

EPSS Score

0.20% (percentile: 8.3%)

Affected Products (1)

Other

• 0-17084

Revision History

• 2026-09-30: Information published.