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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
modelcontextprotocol mcp-server-fetch affected
Version Status Constraints
2026.6.0 affected —
2026.6.1 affected —
2026.6.2 affected —
2026.6.3 affected —
2026.6.4 affected —
modelcontextprotocol mcp-server-everything affected
Version Status Constraints
2026.6.0 affected —
2026.6.1 affected —
2026.6.2 affected —
2026.6.3 affected —
2026.6.4 affected —

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Project Subscriptions

Vendors Products
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Mcp-server-fetch Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Fri, 02 Oct 2026 02:45:00 +0000

Type Values Removed Values Added
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.
Title modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery
First Time appeared Modelcontextprotocol
Modelcontextprotocol mcp-server-everything
Modelcontextprotocol mcp-server-fetch
Weaknesses CWE-918
CPEs cpe:2.3:a:modelcontextprotocol:mcp-server-everything:*:*:*:*:*:*:*:*
cpe:2.3:a:modelcontextprotocol:mcp-server-fetch:*:*:*:*:*:*:*:*
Vendors & Products Modelcontextprotocol
Modelcontextprotocol mcp-server-everything
Modelcontextprotocol mcp-server-fetch
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-02T02:15:18.514Z

Reserved: 2026-10-01T18:15:10.419Z

Link: CVE-2026-104120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-02T03:16:38.840

Modified: 2026-10-02T03:16:38.840

Link: CVE-2026-104120

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-02T03:30:17Z

Weaknesses