CVE-2026-104120

modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery

HIGH
7.3
CVSS Score
Published: October 2, 2026 at 02:15 AM UTC
Updated: October 6, 2026 at 03:16 AM UTC
2 products affected across 1 vendorMcp Server FetchMcp Server Everything

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Severity
HIGH7.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/412764
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/412764/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-104120
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/960099

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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