CVE-2026-102991: Mako: Path traversal via drive-letter URI on Windows in TemplateLookup

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-03

Last Updated

2026-10-06

EPSS Score

0.36% (percentile: 27.0%)

Affected Products (1)

Other

• 21311-17084

Revision History

• 2026-10-03: Information published.
• 2026-10-06: Information published.