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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-15789

Malicious client can bypass destination directory validation on local sources upload

Description

A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.

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