{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93321","assignerOrgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","state":"PUBLISHED","assignerShortName":"Docker","dateReserved":"2026-09-17T17:18:08.293Z","datePublished":"2026-10-05T22:00:54.477Z","dateUpdated":"2026-10-06T13:25:37.712Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"github.com/moby/buildkit","product":"BuildKit","vendor":"moby","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.33.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Haoxiang Yan (https://github.com/Yanhaoxi)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.</p>"}],"value":"A malicious frontend can submit an LLB definition that causes buildkitd\nto panic and terminate, interrupting all builds running on that daemon."}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","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-129","description":"CWE-129: Improper Validation of Array Index","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"686469e6-3ff6-451b-ab8b-cf5b9e89401e","shortName":"Docker","dateUpdated":"2026-10-05T22:00:54.477Z"},"references":[{"tags":["vendor-advisory"],"url":"https://github.com/moby/buildkit/security/advisories/GHSA-fjj4-h6vf-m9hj"},{"tags":["patch"],"url":"https://github.com/moby/buildkit/releases/tag/v0.33.1"}],"source":{"discovery":"EXTERNAL"},"title":"Malformed LLB file operation can crash buildkitd","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":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T13:25:14.458482Z","id":"CVE-2026-93321","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-06T13:25:37.712Z"}}]}}