SSRF in Mzxrai Mcp-Webresearch
CVE-2026-65056
mcp-webresearch 0.1.7 contains a server-side request forgery vulnerability that allows attackers to access internal network services by supplying loopback, link-local, or cloud metadata addresses to the visit_page tool, which only validates the URL protocol without filtering private or reserved IP ranges. Attackers can steer the LLM-controlled URL argument through prompt injection to navigate the server's Playwright browser to internal endpoints such as cloud instance metadata services, causing the server to return sensitive internal page content including credentials into the model context.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.004 (34.1th 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:R/S:C/C:H/I:L/A:N.
Affected products
- Mzxrai Mcp-webresearch — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-65056?
- CVE-2026-65056 is a high-severity vulnerability in Mzxrai Mcp-Webresearch, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-07-21.
- How severe is CVE-2026-65056?
- High severity. CVSS v3 base score is 8.2 out of 10.