CVE-2026-30949

{"id": "CVE-2026-30949", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-10T21:16:47.847", "references": [{"url": "https://github.com/parse-community/parse-server/releases/tag/8.6.18", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.5", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-48mh-j4p5-7j9v", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.5 and 8.6.18, the Keycloak authentication adapter does not validate the azp (authorized party) claim of Keycloak access tokens against the configured client-id. A valid access token issued by the same Keycloak realm for a different client application can be used to authenticate as any user on the Parse Server that uses the Keycloak adapter. This enables cross-application account takeover in multi-client Keycloak realms. All Parse Server deployments that use the Keycloak authentication adapter with a Keycloak realm that has multiple client applications are affected. This vulnerability is fixed in 9.5.2-alpha.5 and 8.6.18."}, {"lang": "es", "value": "Parse Server es un backend de c\u00f3digo abierto que puede ser desplegado en cualquier infraestructura que pueda ejecutar Node.js. Antes de 9.5.2-alpha.5 y 8.6.18, el adaptador de autenticaci\u00f3n de Keycloak no valida la declaraci\u00f3n azp (parte autorizada) de los tokens de acceso de Keycloak contra el client-id configurado. Un token de acceso v\u00e1lido emitido por el mismo reino de Keycloak para una aplicaci\u00f3n cliente diferente puede ser usado para autenticarse como cualquier usuario en el Parse Server que usa el adaptador de Keycloak. Esto permite la toma de control de cuentas entre aplicaciones en reinos de Keycloak multi-cliente. Todas las implementaciones de Parse Server que usan el adaptador de autenticaci\u00f3n de Keycloak con un reino de Keycloak que tiene m\u00faltiples aplicaciones cliente est\u00e1n afectadas. Esta vulnerabilidad est\u00e1 corregida en 9.5.2-alpha.5 y 8.6.18."}], "lastModified": "2026-03-11T19:40:59.783", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "2AE03724-532F-47A8-93E9-6BF57E1FCEF6", "versionEndExcluding": "8.6.18"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E66572ED-597B-4D8E-A636-733D463A4E4D", "versionEndExcluding": "9.5.2", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E0D611B9-CD4F-418B-8FBD-CFA1BCA9E817"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "6521B8A9-6116-4CAE-9B5E-F22C204B1F0C"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "601B2CF1-D29A-42CC-8405-185C1A8E1EB2"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha4:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "BC9F2B9D-026F-454B-B565-05AA441FA54F"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}