CVE-2026-42260

HighCVSS 8.2/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-918

Affected software

Vendor	Product	Versions
Aas-ee	open-webSearch	< 2.1.7

References

Timeline

Published: May 12, 2026
Last modified: Jun 17, 2026
NVD status: Deferred

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