{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92812", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-16T19:55:01.700Z", "datePublished": "2026-09-16T20:32:58.261Z", "dateUpdated": "2026-09-19T01:53:35.949Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-16T20:32:58.261Z"}, "datePublic": "2026-09-16T00:00:00.000Z", "title": "decap-server Path Traversal via Sibling Directory Prefix Matching", "descriptions": [{"lang": "en", "value": "decap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the repository directory name to read, write, or delete files outside the intended repository root."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "cweId": "CWE-22", "type": "CWE"}]}], "affected": [{"vendor": "decaporg", "product": "decap-server", "defaultStatus": "unaffected", "versions": [{"version": "11f35405cd1a1d1216e97b890173f46436752019", "status": "affected", "versionType": "git"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/geo-chen/oss/blob/main/decap-cms.md", "tags": ["technical-description", "exploit"], "name": "Researcher write-up"}, {"url": "https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middlewares/joi/customValidators.ts#L11-L16", "tags": ["technical-description"], "name": "startsWith is used with no trailing separator"}, {"url": "https://github.com/decaporg/decap-cms", "tags": ["product"]}, {"name": "VulnCheck Advisory: decap-server Path Traversal via Sibling Directory Prefix Matching", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching"}], "credits": [{"lang": "en", "value": "George Chen", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-19T01:53:24.560519Z", "id": "CVE-2026-92812", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-19T01:53:35.949Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-92812", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-19T01:53:24.560519Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-19T01:53:31.095Z"}}], "cna": {"title": "decap-server Path Traversal via Sibling Directory Prefix Matching", "credits": [{"lang": "en", "type": "finder", "value": "George Chen"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 7.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "decaporg", "product": "decap-server", "versions": [{"status": "affected", "version": "11f35405cd1a1d1216e97b890173f46436752019", "versionType": "git"}], "defaultStatus": "unaffected"}], "datePublic": "2026-09-16T00:00:00.000Z", "references": [{"url": "https://github.com/geo-chen/oss/blob/main/decap-cms.md", "name": "Researcher write-up", "tags": ["technical-description", "exploit"]}, {"url": "https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middlewares/joi/customValidators.ts#L11-L16", "name": "startsWith is used with no trailing separator", "tags": ["technical-description"]}, {"url": "https://github.com/decaporg/decap-cms", "tags": ["product"]}, {"url": "https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching", "name": "VulnCheck Advisory: decap-server Path Traversal via Sibling Directory Prefix Matching", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "decap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the repository directory name to read, write, or delete files outside the intended repository root."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-16T20:32:58.261Z"}}}, "cveMetadata": {"cveId": "CVE-2026-92812", "state": "PUBLISHED", "dateUpdated": "2026-09-19T01:53:35.949Z", "dateReserved": "2026-09-16T19:55:01.700Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-09-16T20:32:58.261Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "decap-server", "vendor": "decaporg", "versions": [{"status": "affected", "version": "11f35405cd1a1d1216e97b890173f46436752019", "versionType": "git"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "decap-server contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the repository directory name to read, write, or delete files outside the intended repository root."}], "id": "CVE-2026-92812", "lastModified": "2026-09-19T02:16:55.073", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.6, "baseSeverity": "HIGH", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/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": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-92812", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-19T01:53:24.560519Z", "version": "2.0.3"}}]}, "published": "2026-09-16T21:17:31.017", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/decaporg/decap-cms"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d1216e97b890173f46436752019/packages/decap-server/src/middlewares/joi/customValidators.ts#L11-L16"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/geo-chen/oss/blob/main/decap-cms.md"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/decap-server-path-traversal-via-sibling-directory-prefix-matching"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "11f35405cd1a1d1216e97b890173f46436752019"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "decap-server", "source": "cna", "vendor": "decaporg"}, "product": "decap-server", "vendor": "decaporg"}], "created": "2026-09-18T06:30:05.440854+00:00", "updated": "2026-09-18T20:03:02.601782+00:00", "vendors": ["decaporg", "decaporg$PRODUCT$decap-server"]}