{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93315", "assignerOrgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e", "state": "PUBLISHED", "assignerShortName": "Docker", "dateReserved": "2026-09-17T17:17:25.321Z", "datePublished": "2026-10-05T21:57:08.053Z", "dateUpdated": "2026-10-05T21:57:08.053Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "github.com/moby/buildkit", "platforms": ["Linux"], "product": "BuildKit", "vendor": "moby", "versions": [{"version": "0.31.0", "status": "affected", "lessThan": "0.33.1", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Zhenchen Wang (Institute of Software, Chinese Academy of Sciences), Shuo Huai, Songlin Zhu, Weijie Liu, and Yan Jia (Nankai University)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build."}], "value": "When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build."}], "metrics": [{"cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA:N", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "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-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "686469e6-3ff6-451b-ab8b-cf5b9e89401e", "shortName": "Docker", "dateUpdated": "2026-10-05T21:57:08.053Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://github.com/moby/buildkit/security/advisories/GHSA-2f5p-x9ph-g97x"}, {"tags": ["patch"], "url": "https://github.com/moby/buildkit/releases/tag/v0.33.1"}], "source": {"discovery": "EXTERNAL"}, "title": "BuildKit proxy CA cleanup can be disrupted by build steps", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Avoid using build sources from untrusted locations. Only builds enabling proxy networking for exec steps (either via BuildKitd TOML config or Buildx Rego policy) are affected."}], "value": "Avoid using build sources from untrusted locations. Only builds enabling proxy networking for exec steps (either via BuildKitd TOML config or Buildx Rego policy) are affected."}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "github.com/moby/buildkit", "platforms": ["Linux"], "product": "BuildKit", "vendor": "moby", "versions": [{"lessThan": "0.33.1", "status": "affected", "version": "0.31.0", "versionType": "semver"}]}], "source": "security@docker.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build."}], "id": "CVE-2026-93315", "lastModified": "2026-10-05T22:16:58.820", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@docker.com", "type": "Secondary"}]}, "published": "2026-10-05T22:16:58.820", "references": [{"source": "security@docker.com", "url": "https://github.com/moby/buildkit/releases/tag/v0.33.1"}, {"source": "security@docker.com", "url": "https://github.com/moby/buildkit/security/advisories/GHSA-2f5p-x9ph-g97x"}], "sourceIdentifier": "security@docker.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security@docker.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[0.31.0,0.33.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "BuildKit", "source": "cna", "vendor": "moby"}, "product": "buildkit", "vendor": "moby"}], "created": "2026-10-05T23:30:14.458979+00:00", "updated": "2026-10-05T23:30:14.459001+00:00", "vendors": ["moby", "moby$PRODUCT$buildkit"]}