CVE-2026-102277: brace-expansion: Quadratic-time expansion of the `{a},b}` rewrite causes CPU denial of service

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-01

EPSS Score

0.30% (percentile: 20.5%)

Affected Products (1)

Other

• 19693-17084

Revision History

• 2026-10-01: Information published.