CVE Catalog

CVE-2026-104120

HighCVSS 7.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

20th percentile - higher than 20% of all known CVEs

Summary

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. The function fetch_url in mcp_server_fetch/server.py is affected by manipulation of the url/path argument, leading to server-side request forgery. The attack can be initiated remotely, and the exploit has been publicly disclosed. A fix is awaiting acceptance.

Risk Assessment

An attacker can exploit SSRF to scan internal networks, access internal services, or make unauthorized requests, potentially leading to data leakage or further infrastructure compromise.

Recommendation

Monitor the repository to apply the pending fix. Until then, restrict access to the tool and implement URL filtering and blocking of internal addresses.

Related vulnerabilities

Original NVD description (English source)

A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetch_url of the file mcp_server_fetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The pull request to fix this issue awaits acceptance.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS