CVE-2026-61711
mediumpriority · track · 0EPSS 0.004 · 29 %ileDEFRRUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–6.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (40)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2111docker: Mehrere SchwachstellenDeutsch2026-06-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in docker ausnutzen, um einen Denial of Service Angriff durchzuführen oder Sicherheitsmaßnahmen zu umgehen.
- GHSA-7236-3392-c5c6BuildKit: Custom frontend could bypass Seccomp/AppArmor2026-08-19ghsa · osvUS
### 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.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
- GO-2026-6255BuildKit: Custom frontend could bypass Seccomp/AppArmor in github.com/moby/buildkit2026-08-25vendor · osvUS
BuildKit: Custom frontend could bypass Seccomp/AppArmor in github.com/moby/buildkit
also known as (3)
Other names and identifiers for this entity.
- BDU:2026-15382fstec_bdu
- GHSA-7236-3392-c5c6osv
- GO-2026-6255osv
sources
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references (4) nvd
External citations — patches, advisories, analysis.
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