Skip to content
CVE PROGRAM SOURCE RECORD5.6 Medium

CVE-2026-15788

WCOW cache mount source selector resolves NTFS junctions outside of cache root

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Docker

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

moby BuildKit

Default version status: unaffected

  • 0 to < 0.31.2affected

References