{"id":"CVE-2026-93319","state":"PUBLISHED","title":"A malicious frontend can cause a daemon panic","description":"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.","publishedAt":"2026-10-05T17:47:22.297Z","updatedAt":"2026-10-05T19:07:12.038Z","severity":{"score":5.7,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"Docker"},"assigner":"Docker","products":["moby BuildKit"],"affected":[{"vendor":"moby","product":"BuildKit","packageName":"github.com/moby/buildkit","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.33.0","versionType":"semver"}]}],"references":["https://github.com/moby/buildkit/security/advisories/GHSA-4hgw-qrhw-fhg8","https://github.com/moby/buildkit/releases/tag/v0.33.1"],"weaknesses":["CWE-567"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93319.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93319","state":"PUBLISHED","datePublished":"2026-10-05T17:47:22.297Z","dateUpdated":"2026-10-05T19:07:12.038Z","assignerShortName":"Docker","assignerOrgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","dateReserved":"2026-09-17T17:17:56.112Z"},"containers":{"cna":{"title":"A malicious frontend can cause a daemon panic","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"moby","product":"BuildKit","packageName":"github.com/moby/buildkit","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.33.0","versionType":"semver"}]}],"references":[{"url":"https://github.com/moby/buildkit/security/advisories/GHSA-4hgw-qrhw-fhg8","tags":["vendor-advisory"]},{"url":"https://github.com/moby/buildkit/releases/tag/v0.33.1","tags":["patch"]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","baseScore":5.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","exploitMaturity":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-567","description":"CWE-567: Unsynchronized Access to Shared Data in a Multi-threaded Context","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Docker","orgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","dateUpdated":"2026-10-05T17:47:22.297Z"},"credits":[{"lang":"en","type":"finder","value":"Myungyong Lee (https://github.com/2peopledesu)"}],"source":{"discovery":"EXTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Avoid using external BuildKit frontends from untrusted sources. Dockerfile builds are unaffected.</p>"}],"value":"Avoid using external BuildKit frontends from untrusted sources. Dockerfile builds are unaffected."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T19:07:02.797511Z","id":"CVE-2026-93319","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-05T19:07:12.038Z"}}]}}}