CVE-2026-42260

Description

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.

PUBLISHED Reserved 2026-04-26 | Published 2026-05-12 | Updated 2026-05-14 | Assigner GitHub_M

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

References

github.com/...Search/security/advisories/GHSA-v228-72c7-fx8j exploit

github.com/...Search/security/advisories/GHSA-v228-72c7-fx8j

cve.org (CVE-2026-42260)

nvd.nist.gov (CVE-2026-42260)

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