CVE-2026-32944

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Prior to 9.6.0-alpha.21 and 8.6.45, an unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. Starting in version 9.6.0-alpha.21 and 8.6.45, a depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app. No known workarounds are available."}, {"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 las versiones 9.6.0-alpha.21 y 8.6.45, un atacante no autenticado puede bloquear el proceso de Parse Server enviando una \u00fanica solicitud con operadores de condici\u00f3n de consulta profundamente anidados. Esto termina el servidor y deniega el servicio a todos los clientes conectados. A partir de las versiones 9.6.0-alpha.21 y 8.6.45, se ha a\u00f1adido un l\u00edmite de profundidad para el anidamiento de operadores de condici\u00f3n de consulta a trav\u00e9s de la opci\u00f3n de servidor 'requestComplexity.queryDepth'. La opci\u00f3n est\u00e1 deshabilitada por defecto para evitar un cambio disruptivo. Para mitigar, actualice y configure la opci\u00f3n a un valor apropiado para su aplicaci\u00f3n. No se conocen soluciones alternativas disponibles."}], "id": "CVE-2026-32944", "lastModified": "2026-06-17T10:36:36.617", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "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": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32944", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-19T16:56:21.057916Z", "version": "2.0.3"}}]}, "published": "2026-03-18T22:16:25.970", "references": [{"source": "security-advisories@github.com", "tags": ["Issue Tracking"], "url": "https://github.com/parse-community/parse-server/pull/10202"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking"], "url": "https://github.com/parse-community/parse-server/pull/10203"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-9xp9-j92r-p88v"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.0.0,9.6.0-alpha.21)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,8.6.45)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "parse-server", "source": "cna", "vendor": "parse-community"}, "product": "parse_server", "vendor": "parse_community"}], "analysis": {"en": {"generated_at": "2026-03-19T18:35:21.575454+00:00", "value": {"mitigation_remediation": ["Upgrade Parse Server to version 9.6.0\u2011alpha.21 or later, or 8.6.45 or later.", "Enable the requestComplexity.queryDepth option and configure an appropriate nesting limit to prevent the crash.", "Monitor Parse Server logs for anomalous query depth requests and verify that the limit functions correctly after the upgrade."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service (Server Crash)"}, "threat_synthesis": {"affected_systems": "The affected product is Parse Server from Parse Community. Versions prior to 9.6.0\u2011alpha.21 and 8.6.45 are vulnerable. All earlier releases should be considered at risk until upgraded.", "description_and_impact": "Parse Server allows an unauthenticated attacker to send a request containing deeply nested query condition operators that causes the server process to crash. The crash terminates the service, denying access to all connected clients. The vulnerability is rooted in improper limit validation (CWE-674) and results in a denial of service rather than code execution or data exposure.", "risk_and_exploitability": "The CVSS score of 8.7 indicates a high severity. The EPSS score is under 1%, suggesting a low probability of widespread exploitation, and the vulnerability is not listed in the CISA KEV catalog. Because the attack vector is unauthenticated and only requires sending a specially crafted HTTP request, the risk is that any user with network access to the server could trigger the crash. The mitigation introduced a requestComplexity.queryDepth option, which limits nesting but is disabled by default to avoid breaking changes."}}}}, "created": "2026-03-19T08:55:17.142925+00:00", "updated": "2026-03-25T11:51:59.897350+00:00", "vendors": ["parse_community", "parse_community$PRODUCT$parse_server"]}