How severe is CVE-2026-44694?

CVE-2026-44694 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2026-44694 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44694?

CVE-2026-44694 affects N8n-mcp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44694?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-44694 have an EU (EUVD) identifier?

Yes. CVE-2026-44694 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28825.

When was CVE-2026-44694 published?

CVE-2026-44694 was published on 2026-05-08 and last updated on 2026-06-17.

CVE-2026-44694

CVE-2026-44694 is a critical-severity vulnerability in N8n-mcp with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 7.2
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28825
Weakness: CWE-367
Affected product: N8n-mcp
Published: 2026-05-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-44694?: 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.
How severe is CVE-2026-44694?: CVE-2026-44694 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2026-44694 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44694?: CVE-2026-44694 affects N8n-mcp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44694?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-44694 have an EU (EUVD) identifier?: Yes. CVE-2026-44694 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28825.
When was CVE-2026-44694 published?: CVE-2026-44694 was published on 2026-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:*

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