moby/buildkit · Security
BuildKit: Custom frontend could bypass Seccomp/AppArmor
- GHSA ID
- GHSA-7236-3392-c5c6
- CVE ID
- CVE-2026-61711
- Severity
- medium
- Published
- Updated
- CVSS v4
- 5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Description
Impact
A custom frontend could send a crafted build request that disabled Seccomp and AppArmor protections for the build container, even if the user did not explicitly allow the security.insecure entitlement. Other security measures, like Linux capabilities were still applied to these containers.
Patches
Problem has been fixed in versions v0.31.1+
Workarounds
Only use BuildKit frontends from trusted providers.
CWEs
- CWE-20 · Improper Input Validation