CVE-2026-75851

{"id": "CVE-2026-75851", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75851", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-18T13:28:16.317157Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "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"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"vendor": "ArcadeData", "product": "arcadedb", "versions": [{"status": "affected", "version": "0", "lessThan": "26.8.1", "versionType": "semver"}, {"status": "unaffected", "version": "26.8.1", "versionType": "semver"}], "packageURL": "pkg:maven/com.arcadedb/arcadedb-server", "defaultStatus": "unaffected"}]}], "published": "2026-08-18T12:19:35.457", "references": [{"url": "https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-5j4x-3jfw-8xv3", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/arcadedb-before-authentication-bypass-via-async-command", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-5j4x-3jfw-8xv3", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "ArcadeDB server (com.arcadedb:arcadedb-server) in versions 26.7.3 and earlier fails to propagate the authenticated principal to asynchronous command worker threads. When an HTTP command is submitted with awaitResponse:false, it executes on an async worker whose DatabaseContext has no bound user, causing the scripting authorization gate to become a no-op. A user with only read access to a single database can submit an asynchronous JavaScript (language=js) command via the /api/v1/command endpoint to run code with unrestricted host access (e.g., database.getSecurity().createUser) and create a server-wide administrator, escalating to full administrative control. Fixed in 26.8.1."}, {"lang": "es", "value": "El servidor ArcadeDB (com.arcadedb:arcadedb-server) en las versiones 26.7.3 y anteriores falla en propagar el principal autenticado a los hilos de trabajo de comandos as\u00edncronos. Cuando se env\u00eda un comando HTTP con awaitResponse:false, este se ejecuta en un trabajador as\u00edncrono cuyo DatabaseContext no tiene un usuario vinculado, lo que hace que la puerta de autorizaci\u00f3n de scripting se convierta en una operaci\u00f3n nula. Un usuario con solo acceso de lectura a una \u00fanica base de datos puede enviar un comando JavaScript as\u00edncrono (language=js) a trav\u00e9s del punto final /api/v1/command para ejecutar c\u00f3digo con acceso de host sin restricciones (por ejemplo, database.getSecurity().createUser) y crear un administrador de todo el servidor, escalando a control administrativo total. Corregido en 26.8.1."}], "lastModified": "2026-10-22T22:10:00.250", "sourceIdentifier": "disclosure@vulncheck.com"}