Is n8n-mcp affected by CVE-2026-45707?

npm n8n-mcp is affected in <2.51.2.

Is CVE-2026-45707 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

high

CVE-2026-45707

Q: Is CVE-2026-45707 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

npm · n8n-mcp

Summary

n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete

Severity: high
EPSS: 0.2% (p14)
Also known as: GHSA-jxx9-px88-pj69
Published: 2026-05-18

References

https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-jxx9-px88-pj69
https://nvd.nist.gov/vuln/detail/CVE-2026-45707
https://github.com/czlonkowski/n8n-mcp/commit/853015d0897be7cf2d9d4726de195c938e4395ab

Related advisories

GHSA-8g7g-hmwm-6rv2 — high · npm/n8n-mcp
CVE-2026-44694 — high · npm/n8n-mcp
CVE-2026-42449 — high · npm/n8n-mcp
GHSA-75hx-xj24-mqrw — high · npm/n8n-mcp
CVE-2026-39974 — high · npm/n8n-mcp
CVE-2026-45582 — medium · npm/n8n-mcp
CVE-2026-42282 — medium · npm/n8n-mcp
CVE-2026-41495 — medium · npm/n8n-mcp

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.