CVE-2026-15789 — Malicious client can bypass destination directory validation on local sources upload

CVE-2026-15789

Malicious client can bypass destination directory validation on local sources upload PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
moby / BuildKit	affected 0 before 0.31.2

CWE

CWE-22

References

https://github.com/moby/buildkit/security/advisories/GHSA-g2h8-426c-7976

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.