modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery
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.
CVE-2026-104120
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-104120
mcp-server-fetch
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
mcp-server-everything
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:modelcontextprotocol:mcp-server-fetch:*:*:*:*:*:*:*:*"
],
"vendor": "modelcontextprotocol",
"modules": [
"Fetch Tool"
],
"product": "mcp-server-fetch",
"versions": [
{
"status": "affected",
"version": "2026.6.0"
},
{
"status": "affected",
"version": "2026.6.1"
},
{
"status": "affected",
"version": "2026.6.2"
},
{
"status": "affected",
"version": "2026.6.3"
},
{
"status": "affected",
"version": "2026.6.4"
}
]
},
{
"cpes": [
"cpe:2.3:a:modelcontextprotocol:mcp-server-everything:*:*:*:*:*:*:*:*"
],
"vendor": "modelcontextprotocol",
"modules": [
"Fetch Tool"
],
"product": "mcp-server-everything",
"versions": [
{
"status": "affected",
"version": "2026.6.0"
},
{
"status": "affected",
"version": "2026.6.1"
},
{
"status": "affected",
"version": "2026.6.2"
},
{
"status": "affected",
"version": "2026.6.3"
},
{
"status": "affected",
"version": "2026.6.4"
}
]
}
]- Related CVEs
- CVE-2026-104120
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #8989 · Revision 1
- Added to Heist Feed
- Publisher date