Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-104120
modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N N L L L 5.5 .0029 19.6 —
AFFECTED
Product Versions Fixed
mcp-server-fetch 2026.6.0 – —
mcp-server-everything 2026.6.0 – —
TIMELINE
Oct 1 Reserved by VulDB
Oct 2 Published (CNA: VulDB)
Oct 5 EXPLOIT PUBLISHED — CVE-2026-104120 (modelcontextprotocol mcp-server-fetch). Public exploit reference 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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| October 1, 2026 | Reserved | Reserved by VulDB |
| October 2, 2026 | Published | Published (CNA: VulDB) |
| October 5, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-104120 (modelcontextprotocol mcp-server-fetch). Public exploit reference added. |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-104120 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
