Bug 2546028 (CVE-2026-93319)

Summary: CVE-2026-93319 github.com/moby/buildkit: buildkit: Denial of Service via data race triggered by external frontend
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: doconnor
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in BuildKit. An attacker using a malicious external build frontend can trigger a Denial of Service (DoS) by sending requests through the internal API. This request sequence induces a data race condition, causing the BuildKit daemon to crash unexpectedly and interrupt build processes.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-05 18:04:20 UTC
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic.