CVE-2026-44694: n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operati

This month

CRITICAL 9.1UPGRADE

CVE-2026-44694 is a critical-severity flaw (CVSS 9.1) affecting n8n-mcp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side request forgery vulnerability affecting the webhook trigger tools, the n8n API client (N8N_API_URL), and per-request URLs supplied via the x-n8n-url header in multi-tenant HTTP mode. This issue has been patched in version 2.50.2.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-367, CWE-918
Published	2026-05-08
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: n8n-mcp

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-08 20:16 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

n8n-mcp n8n-mcp UPGRADE

Affected: >= 2.18.7 and < 2.50.2

Fixed in: 2.50.2

Safe to downgrade to: a release before 2.18.7

1. Check installed version

apt-cache policy n8n-mcp || rpm -q n8n-mcp || n8n-mcp --version

2. UPGRADE to 2.50.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade n8n-mcp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade n8n-mcp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.18.7 (Debian / Ubuntu)

apt-cache madison n8n-mcp sudo apt install n8n-mcp=<VERSION_BEFORE_2.18.7> sudo apt-mark hold n8n-mcp

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list n8n-mcp sudo dnf downgrade n8n-mcp-<VERSION_BEFORE_2.18.7> sudo dnf versionlock add n8n-mcp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44694?

n8n-mcp: upgrade to 2.50.2. Exact commands for each OS are on this page.

Is CVE-2026-44694 being exploited?

CVE-2026-44694 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44694 affect?

CVE-2026-44694 affects n8n-mcp. Severity is critical (CVSS 9.1). n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side request forgery vulnerability affecting t

How urgent is CVE-2026-44694?

Priority 35/100. Critical severity

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References

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