# n8n-mcp (npm) vulnerabilities Source: https://junglewise.ai/threats/technologies/n8n-mcp Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/n8n-mcp.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 11 vulnerabilities in n8n-mcp (npm): 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55608, was published on 15 July 2026. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 0 - All time: 11 (1 critical, 0 exploited in the wild) ## About n8n-mcp (npm) A Model Context Protocol (MCP) implementation for the n8n workflow automation platform. ## Latest n8n-mcp (npm) vulnerabilities - [CVE-2026-55608: czlonkowski n8n-mcp incorrect authorization in multi-tenant HTTP mode](https://junglewise.ai/threats/cve-2026-55608-czlonkowski-n8n-mcp-incorrect-authorization-in-multi-tenant-http) (medium, CVSS 4.2, published 15 Jul 2026) - [CVE-2026-54052: czlonkowski n8n-mcp authorization bypass in workflow backups](https://junglewise.ai/threats/cve-2026-54052-czlonkowski-n8n-mcp-authorization-bypass-in-workflow-backups) (critical, CVSS 9.9, published 15 Jul 2026) - [CVE-2026-45707: czlonkowski n8n-mcp improper access control in multi-tenant mode](https://junglewise.ai/threats/cve-2026-45707-czlonkowski-n8n-mcp-improper-access-control-in-multi-tenant-mode) (high, CVSS 8.1, published 29 May 2026) - [CVE-2026-45582: czlonkowski n8n-mcp sensitive information leak in workflow telemetry](https://junglewise.ai/threats/cve-2026-45582-czlonkowski-n8n-mcp-sensitive-information-leak-in-workflow) (medium, CVSS 6.5, published 29 May 2026) - [CVE-2026-44694: czlonkowski n8n-mcp authenticated SSRF in webhook and API client](https://junglewise.ai/threats/cve-2026-44694-czlonkowski-n8n-mcp-ssrf-in-webhook-and-api-client-paths) (high, CVSS 4, published 8 May 2026) - [CVE-2026-42282: czlonkowski n8n-mcp sensitive information disclosure in logs](https://junglewise.ai/threats/cve-2026-42282-czlonkowski-n8n-mcp-sensitive-information-leak-in-logs) (medium, CVSS 4.3, published 8 May 2026) - [CVE-2026-41495: czlonkowski n8n-mcp sensitive information disclosure in logs](https://junglewise.ai/threats/cve-2026-41495-n8n-mcp-logs-sensitive-request-data-on-unauthorized-mcp-requests) (medium, CVSS 5.3, published 8 May 2026) - [n8n-mcp multiple vulnerabilities in API client and telemetry](https://junglewise.ai/threats/n8n-mcp-multiple-vulnerabilities-in-api-client-and-telemetry-ef36d1b2) (low, CVSS 3.1, published 8 May 2026) - [CVE-2026-42449: czlonkowski n8n-mcp SSRF via IPv4-mapped IPv6 addresses](https://junglewise.ai/threats/cve-2026-42449-czlonkowski-n8n-mcp-ssrf-via-ipv4-mapped-ipv6-addresses) (high, CVSS 8.5, published 7 May 2026) - [n8n-mcp missing authentication in HTTP transport](https://junglewise.ai/threats/n8n-mcp-missing-authentication-in-http-transport-5b2c5068) (low, CVSS 3.1, published 10 Apr 2026) - [CVE-2026-39974: n8n-mcp authenticated SSRF via instance-URL header](https://junglewise.ai/threats/cve-2026-39974-n8n-mcp-authenticated-ssrf-via-instance-url-header) (high, CVSS 8.5, published 9 Apr 2026) ## Most severe n8n-mcp (npm) vulnerabilities - [CVE-2026-54052: czlonkowski n8n-mcp authorization bypass in workflow backups](https://junglewise.ai/threats/cve-2026-54052-czlonkowski-n8n-mcp-authorization-bypass-in-workflow-backups) (critical, CVSS 9.9, published 15 Jul 2026) - [CVE-2026-42449: czlonkowski n8n-mcp SSRF via IPv4-mapped IPv6 addresses](https://junglewise.ai/threats/cve-2026-42449-czlonkowski-n8n-mcp-ssrf-via-ipv4-mapped-ipv6-addresses) (high, CVSS 8.5, published 7 May 2026) - [CVE-2026-39974: n8n-mcp authenticated SSRF via instance-URL header](https://junglewise.ai/threats/cve-2026-39974-n8n-mcp-authenticated-ssrf-via-instance-url-header) (high, CVSS 8.5, published 9 Apr 2026) - [CVE-2026-45707: czlonkowski n8n-mcp improper access control in multi-tenant mode](https://junglewise.ai/threats/cve-2026-45707-czlonkowski-n8n-mcp-improper-access-control-in-multi-tenant-mode) (high, CVSS 8.1, published 29 May 2026) - [CVE-2026-44694: czlonkowski n8n-mcp authenticated SSRF in webhook and API client](https://junglewise.ai/threats/cve-2026-44694-czlonkowski-n8n-mcp-ssrf-in-webhook-and-api-client-paths) (high, CVSS 4, published 8 May 2026) - [CVE-2026-45582: czlonkowski n8n-mcp sensitive information leak in workflow telemetry](https://junglewise.ai/threats/cve-2026-45582-czlonkowski-n8n-mcp-sensitive-information-leak-in-workflow) (medium, CVSS 6.5, published 29 May 2026) - [CVE-2026-41495: czlonkowski n8n-mcp sensitive information disclosure in logs](https://junglewise.ai/threats/cve-2026-41495-n8n-mcp-logs-sensitive-request-data-on-unauthorized-mcp-requests) (medium, CVSS 5.3, published 8 May 2026) - [CVE-2026-42282: czlonkowski n8n-mcp sensitive information disclosure in logs](https://junglewise.ai/threats/cve-2026-42282-czlonkowski-n8n-mcp-sensitive-information-leak-in-logs) (medium, CVSS 4.3, published 8 May 2026) - [CVE-2026-55608: czlonkowski n8n-mcp incorrect authorization in multi-tenant HTTP mode](https://junglewise.ai/threats/cve-2026-55608-czlonkowski-n8n-mcp-incorrect-authorization-in-multi-tenant-http) (medium, CVSS 4.2, published 15 Jul 2026) - [n8n-mcp multiple vulnerabilities in API client and telemetry](https://junglewise.ai/threats/n8n-mcp-multiple-vulnerabilities-in-api-client-and-telemetry-ef36d1b2) (low, CVSS 3.1, published 8 May 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other npm technologies - [openclaw (npm)](https://junglewise.ai/threats/technologies/npm-openclaw): 214 vulnerabilities - [flowise (npm)](https://junglewise.ai/threats/technologies/flowise): 133 vulnerabilities - [parse-server (npm)](https://junglewise.ai/threats/technologies/parse-server): 117 vulnerabilities - [vm2 (npm)](https://junglewise.ai/threats/technologies/vm2): 111 vulnerabilities - [electron (npm)](https://junglewise.ai/threats/technologies/electron): 77 vulnerabilities - [ghost (npm)](https://junglewise.ai/threats/technologies/ghost): 74 vulnerabilities - [n8n (npm)](https://junglewise.ai/threats/technologies/npm-n8n): 64 vulnerabilities - [hono (npm)](https://junglewise.ai/threats/technologies/hono): 62 vulnerabilities - [directus (npm)](https://junglewise.ai/threats/technologies/directus): 61 vulnerabilities - [nocodb (npm)](https://junglewise.ai/threats/technologies/nocodb): 54 vulnerabilities - [undici (npm)](https://junglewise.ai/threats/technologies/undici): 53 vulnerabilities - [@budibase/server (npm)](https://junglewise.ai/threats/technologies/budibase-server): 42 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "n8n-mcp (npm) vulnerabilities", https://junglewise.ai/threats/technologies/n8n-mcp, 13 November 2026.