October 8, 2026

CVE Watchtower

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CVE-2026-104120NVD

Vulnerability Summary

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.
Severity Level
MEDIUM(6.9)
Published Date
Oct 2, 2026
Last Modified
Oct 6, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.29%Probability
Root Weakness (CWE)
CWE-918: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 6.9 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)Low
Integrity (Vulnerable System)Low
Availability (Vulnerable System)Low
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 7.3 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • modelcontextprotocol mcp-server-fetch >= 2026.6.0
  • modelcontextprotocol mcp-server-fetch >= 2026.6.1
  • modelcontextprotocol mcp-server-fetch >= 2026.6.2
  • modelcontextprotocol mcp-server-fetch >= 2026.6.3
  • modelcontextprotocol mcp-server-fetch >= 2026.6.4
  • modelcontextprotocol mcp-server-everything >= 2026.6.0
  • modelcontextprotocol mcp-server-everything >= 2026.6.1
  • modelcontextprotocol mcp-server-everything >= 2026.6.2
  • modelcontextprotocol mcp-server-everything >= 2026.6.3
  • modelcontextprotocol mcp-server-everything >= 2026.6.4
Patched Versions
Not provided by cveorg for this CVE.
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References