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.
Metrics
Affected Vendors & Products
References
History
Thu, 20 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
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ssvc
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Wed, 19 Aug 2026 22:45:00 +0000
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| First Time appeared |
Moby
Moby buildkit |
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| Vendors & Products |
Moby
Moby buildkit |
Wed, 19 Aug 2026 20:15:00 +0000
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| 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. | |
| Title | BuildKit: Custom frontend could bypass Seccomp/AppArmor | |
| Weaknesses | CWE-20 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-08-19T20:03:38.250Z
Updated: 2026-08-20T13:19:05.458Z
Reserved: 2026-07-10T18:51:13.920Z
Link: CVE-2026-61711
Updated: 2026-08-20T13:18:55.856Z
Status : Received
Published: 2026-08-19T20:17:19.567
Modified: 2026-08-20T14:17:21.073
Link: CVE-2026-61711
No data.