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{"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"]}