What is CVE-2026-42260?

CVE-2026-42260 is a high-severity vulnerability in Aas-ee Open-websearch, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-05-12.

How severe is CVE-2026-42260?

High severity. CVSS v3 base score is 8.2 out of 10.

SSRF in Aas-ee Open-websearch

CVE-2026-42260

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…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (12.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Aas-ee Open-websearch — versions < 2.1.7

Weakness classification (CWE)

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

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-42260?: CVE-2026-42260 is a high-severity vulnerability in Aas-ee Open-websearch, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-05-12.
How severe is CVE-2026-42260?: High severity. CVSS v3 base score is 8.2 out of 10.