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CVE-2026-61711

BuildKit: Custom frontend could bypass Seccomp/AppArmor PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
moby / buildkitaffected < 0.31.1

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.