CVE-2026-44694CRITICAL 9.1EPSS p14.2%

CVE-2026-44694CVE-2026-44694

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
EPSS0.24% probability of exploitation · percentile 14.2% · 2026-06-18T12:00:27Z
Published2026-05-08
Last modified2026-05-14

Underlying weaknesses· 2

CWE-367CWE-918

References

  1. https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098eb
  2. https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2
  3. https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9r

2

TypeTargetConfidenceTier
WeaknessTime-of-check Time-of-use (TOCTOU) Race Conditioncwe-3670%live
WeaknessServer-Side Request Forgery (SSRF)cwe-9180%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-39974
CVE
CVE-2026-42449
CVE
CVE-2026-45707
CVE
CVE-2026-45582
CVE
CVE-2026-42235
CVE
CVE-2026-42231
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.