CVE-2026-42260

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{"affected": [{"affectedData": [{"product": "open-webSearch", "vendor": "Aas-ee", "versions": [{"status": "affected", "version": "< 2.1.7"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Open-WebSearch is a multi-engine MCP server, CLI, and local daemon for agent web search and content retrieval. Prior to 2.1.7, isPublicHttpUrl / assertPublicHttpUrl in src/utils/urlSafety.ts do not recognize bracketed IPv6 literals and do not resolve DNS, which combine to allow non-blind SSRF with the response body returned to the caller. This vulnerability is fixed in 2.1.7."}, {"lang": "es", "value": "Open-WebSearch es un servidor MCP multi-motor, CLI y demonio local para b\u00fasqueda web de agentes y recuperaci\u00f3n de contenido. Antes de la versi\u00f3n 2.1.7, isPublicHttpUrl / assertPublicHttpUrl en src/utils/urlSafety.ts no reconocen los literales IPv6 entre corchetes y no resuelven DNS, lo que en conjunto permite un SSRF no ciego con el cuerpo de la respuesta devuelto al llamador. Esta vulnerabilidad se corrige en la versi\u00f3n 2.1.7."}], "id": "CVE-2026-42260", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42260", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-14T19:10:32.980399Z", "version": "2.0.3"}}]}, "published": "2026-05-12T15:16:15.150", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Aas-ee/open-webSearch/security/advisories/GHSA-v228-72c7-fx8j"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Aas-ee/open-webSearch/security/advisories/GHSA-v228-72c7-fx8j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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