CVE-2026-27447: OpenPrinting CUPS: Authorization bypass via case-insensitive group-member lookup

Overview

Severity

Medium (CVSS 4.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-05

EPSS Score

0.03% (percentile: 8.9%)

Affected Products (1)

Other

• 20737-17084

Revision History

• 2026-04-05: Information published.