CVE-2025-66689

{"id": "CVE-2025-66689", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-66689", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-12T18:32:54.531155Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2026-01-12T17:15:52.297", "references": [{"url": "https://github.com/BeehiveInnovations/zen-mcp-server/issues/293", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/Team-Off-course/MCP-Server-Vuln-Analysis/blob/main/CVE-2025-66689.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-552"}]}], "descriptions": [{"lang": "en", "value": "A path traversal vulnerability exists in Zen MCP Server before 9.8.2 that allows authenticated attackers to read arbitrary files on the system. The vulnerability is caused by flawed logic in the is_dangerous_path() validation function that uses exact string matching against a blacklist of system directories. Attackers can bypass these restrictions by accessing subdirectories of blacklisted paths."}, {"lang": "es", "value": "Existe una vulnerabilidad de salto de ruta en el servidor Zen MCP anterior a la versi\u00f3n 9.8.2 que permite a atacantes autenticados leer archivos arbitrarios en el sistema. La vulnerabilidad es causada por una l\u00f3gica defectuosa en la funci\u00f3n de validaci\u00f3n is_dangerous_path() que utiliza la coincidencia exacta de cadenas contra una lista negra de directorios del sistema. Los atacantes pueden eludir estas restricciones accediendo a subdirectorios de rutas en la lista negra."}], "lastModified": "2026-06-17T09:57:10.663", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:busymac:pal_mcp_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A1FAFFB-AC0C-4785-8DF0-D17C3D4DA2B5", "versionEndExcluding": "9.8.2"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}