VULNERABILITY INTELLIGENCE

CVE-2026-15788

CVSS score7.5 HIGH

EPSS probability0.41%

CISA KEVNot currently listed

Published2026-07-20

Last modified2026-10-24

Description

BuildKit's cache mount source= selector on Windows Container on Windows (WCOW) workers does not detect NTFS directory junctions placed inside the cache root. A build authored by an untrusted user on a WCOW-configured BuildKit daemon can read arbitrary host files reachable to the BuildKit daemon process.