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vuln-cve/data/2026/93xxx/CVE-2026-93321.json
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{
"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"
}
}
]
}
}