Fetch MCP Server has a Server-Side Request Forgery (SSRF) vulnerability
fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery (SSRF) vulnerability, which allows attackers to bypass private IP validation and access internal network resources.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | mcp-fetch-server | <= 1.0.2 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-65513
- https://github.com/Team-Off-course/MCP-Server-Vuln-Analysis/blob/main/CVE-2025-65513.md
- https://github.com/zcaceres/fetch-mcp
- https://github.com/zcaceres/fetch-mcp/blob/c662c8ac300f715e414a64766cd95cc9ec60a1b3/src/Fetcher.ts#L20
- https://thorn-pheasant-6d8.notion.site/fetch-mcp-2853daf7b44180029ca5d56e03195736
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N- Weakness (CWE)
CWE-918- Platform
- npm
- Package
mcp-fetch-server- Disclosed
- 10.12.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8fxj-2g9q-8fjw - CC BY 4.0
Vulnerability history: mcp-fetch-server
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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