CVE-2026-104120CWE-918ssrf

CVE-2026-104120

High · published October 2, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
20.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00288 · 20.2th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-02T07:16Z
References (6)
https://github.com/modelcontextprotocol/servers/issues/4492 · [email protected]https://github.com/modelcontextprotocol/servers/pull/4890 · [email protected]https://vuldb.com/cve/CVE-2026-104120 · [email protected]https://vuldb.com/submit/960099 · [email protected]https://vuldb.com/vuln/412764 · [email protected]https://vuldb.com/vuln/412764/cti · [email protected]
EPSS history
Timeline
  • 03 OCT 03:41Z
    EPSS moved — → 0%
    epss
  • 02 OCT 02:15Z
    modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery
    cvelistv5