Vulnerability in moby BuildKit

[ Description ]Official description

When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3741

  BuildKit: Multiple vulnerabilities Translated from German

  CVE-2026-93319CVE-2026-93318CVE-2026-93323+7 more CVEs

[ References ]References

• github.com/moby/buildkit/releases/tag/v0.33.1
• github.com/moby/buildkit/security/advisories/GHSA-2f5p-x9ph-g97x