Vulnerability Description
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, a custom frontend could place an invalid SecurityMode value in a crafted build request, and executor/oci/spec_linux.go treated the unsupported value as a non-sandbox mode without requiring the security.insecure entitlement. This disabled Seccomp and AppArmor protections for the build container even though Linux capabilities remained restricted. This issue is fixed in version 0.31.1.
Related Weaknesses (CWE)
References
- https://github.com/moby/buildkit/commit/3ea6dd0ce7d269cdb8aa23348718e2c1bf64f109
- https://github.com/moby/buildkit/commit/64bbec89ca43dd95b2853edeca240c33c6729910
- https://github.com/moby/buildkit/releases/tag/v0.31.1
- https://github.com/moby/buildkit/security/advisories/GHSA-7236-3392-c5c6
FAQ
What is CVE-2026-61711?
CVE-2026-61711 is a documented vulnerability. BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, a custom frontend could place an invalid SecurityMode value in a...
How severe is CVE-2026-61711?
CVSS scoring is not yet available for CVE-2026-61711. Check NVD for updates.
Is there a patch for CVE-2026-61711?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.