[ CVE-2026-93321 · Published 5 Oct 2026 ]

Vulnerability in moby BuildKit

CVSS 6.9 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.

[ 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-fjj4-h6vf-m9hj

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

BuildKit: Multiple vulnerabilities Translated from German

[ References ]References