CVE-2026-66090

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66090", "assignerOrgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "state": "PUBLISHED", "assignerShortName": "MON-CSIRT", "dateReserved": "2026-07-24T02:22:10.431Z", "datePublished": "2026-10-29T01:37:37.928Z", "dateUpdated": "2026-10-29T02:02:13.278Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "shortName": "MON-CSIRT", "dateUpdated": "2026-10-29T01:37:37.928Z"}, "title": "XML External Entity (XXE) Injection in Metadata Field Allows Arbitrary File Read", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-611", "description": "CWE-611 Improper restriction of XML external entity reference", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-201", "descriptions": [{"lang": "en", "value": "CAPEC-201 Serialized Data External Linking"}]}, {"capecId": "CAPEC-250", "descriptions": [{"lang": "en", "value": "CAPEC-250 XML Injection"}]}], "affected": [{"vendor": "Apereo Foundation", "product": "openEQUELLA", "versions": [{"status": "affected", "version": "0", "lessThan": "2026.1", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services."}]}], "references": [{"url": "https://github.com/openequella/openEQUELLA/security/advisories/GHSA-668q-3hpr-6c96", "tags": ["vendor-advisory"]}, {"url": "https://openequella.github.io/guides/", "tags": ["product"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "Update to vendor recommended versions", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Update to vendor recommended versions"}]}], "credits": [{"lang": "en", "value": "feixy", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-66090", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T01:50:31.628692Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T02:02:13.278Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-66090", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T01:50:31.628692Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T01:54:00.306Z"}}], "cna": {"title": "XML External Entity (XXE) Injection in Metadata Field Allows Arbitrary File Read", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "feixy"}], "impacts": [{"capecId": "CAPEC-201", "descriptions": [{"lang": "en", "value": "CAPEC-201 Serialized Data External Linking"}]}, {"capecId": "CAPEC-250", "descriptions": [{"lang": "en", "value": "CAPEC-250 XML Injection"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Apereo Foundation", "product": "openEQUELLA", "versions": [{"status": "affected", "version": "0", "lessThan": "2026.1", "versionType": "custom"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update to vendor recommended versions", "supportingMedia": [{"type": "text/html", "value": "Update to vendor recommended versions", "base64": false}]}], "references": [{"url": "https://github.com/openequella/openEQUELLA/security/advisories/GHSA-668q-3hpr-6c96", "tags": ["vendor-advisory"]}, {"url": "https://openequella.github.io/guides/", "tags": ["product"]}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services.", "supportingMedia": [{"type": "text/html", "value": "In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-611", "description": "CWE-611 Improper restriction of XML external entity reference"}]}], "providerMetadata": {"orgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "shortName": "MON-CSIRT", "dateUpdated": "2026-10-29T01:37:37.928Z"}}}, "cveMetadata": {"cveId": "CVE-2026-66090", "state": "PUBLISHED", "dateUpdated": "2026-10-29T02:02:13.278Z", "dateReserved": "2026-07-24T02:22:10.431Z", "assignerOrgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "datePublished": "2026-10-29T01:37:37.928Z", "assignerShortName": "MON-CSIRT"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "openEQUELLA", "vendor": "Apereo Foundation", "versions": [{"lessThan": "2026.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services."}], "id": "CVE-2026-66090", "lastModified": "2026-10-29T15:56:34.127", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/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": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-66090", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T01:50:31.628692Z", "version": "2.0.3"}}]}, "published": "2026-10-29T02:16:52.803", "references": [{"source": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "url": "https://github.com/openequella/openEQUELLA/security/advisories/GHSA-668q-3hpr-6c96"}, {"source": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "url": "https://openequella.github.io/guides/"}], "sourceIdentifier": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "openEQUELLA", "source": "cna", "vendor": "Apereo Foundation"}, "product": "openequella", "vendor": "apereo_foundation"}], "created": "2026-10-29T02:30:07.668608+00:00", "updated": "2026-10-29T02:45:13.935523+00:00", "vendors": ["apereo_foundation", "apereo_foundation$PRODUCT$openequella"]}