CVE-2026-104120

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.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/modelcontextprotocol/servers/issues/4492
https://github.com/modelcontextprotocol/servers/pull/4890
https://vuldb.com/cve/CVE-2026-104120
https://vuldb.com/submit/960099
https://vuldb.com/vuln/412764
https://vuldb.com/vuln/412764/cti

Configurations

No configuration.

History

02 Oct 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-02 03:16

Updated : 2026-10-06 03:16

NVD link : CVE-2026-104120

Mitre link : CVE-2026-104120

CVE.ORG link : CVE-2026-104120

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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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."}], "lastModified": "2026-10-06T03:16:59.463", "sourceIdentifier": "cna@vuldb.com"}