{"id":"CVE-2026-42260","sourceIdentifier":"security-advisories@github.com","published":"2026-05-12T15:16:15.150","lastModified":"2026-06-17T10:47:35.910","vulnStatus":"Deferred","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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"Aas-ee","product":"open-webSearch","versions":[{"version":"< 2.1.7","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-14T19:10:32.980399Z","id":"CVE-2026-42260","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-918"}]}],"references":[{"url":"https://github.com/Aas-ee/open-webSearch/security/advisories/GHSA-v228-72c7-fx8j","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"}]}