{"id":"CVE-2026-44694","summary":"n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths","details":"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.","aliases":["GHSA-cmrh-wvq6-wm9r"],"modified":"2026-07-08T08:13:28.038503150Z","published":"2026-05-08T19:12:05.326Z","database_specific":{"cwe_ids":["CWE-367","CWE-918"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44694.json"},"references":[{"type":"WEB","url":"https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44694.json"},{"type":"ADVISORY","url":"https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44694"},{"type":"FIX","url":"https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098eb"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/czlonkowski/n8n-mcp","events":[{"introduced":"dc62fd66cbc58a518b2a5a3ace3902b0f87fdaa4"},{"fixed":"bcaba839409d470abeb4a6ad9b361b553a1098eb"}],"database_specific":{"cpe":"cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:*","source":["AFFECTED_FIELD","CPE_RANGE","REFERENCES"],"extracted_events":[{"introduced":"2.18.7"},{"fixed":"2.50.2"}]}}],"versions":["v2.50.1","v2.50.0","v2.49.0","v2.48.3","v2.48.2","v2.48.1","v2.48.0","v2.47.14","v2.47.13","v2.47.12","v2.47.11","v2.47.10","v2.47.9","v2.47.8","v2.47.7","v2.47.6","v2.47.5","v2.47.4","v2.47.3","v2.47.2","v2.47.1","v2.47.0","v2.46.1","v2.46.0","v2.45.1","v2.45.0","v2.44.1","v2.44.0","v2.43.0","v2.42.3","v2.42.2","v2.42.1","v2.42.0","v2.41.4","v2.41.3","v2.41.2","v2.41.1","v2.41.0","v2.40.5","v2.40.4","v2.40.3","v2.40.2","v2.40.1","v2.40.0","v2.38.0","v2.37.4","v2.37.3","v2.37.2","v2.37.1","v2.36.2","v2.36.1","v2.36.0","v2.35.6","v2.35.5","v2.35.4","v2.35.3","v2.35.2","v2.35.1","v2.35.0","v2.34.5","v2.34.4","v2.34.3","v2.34.2","v2.34.1","v2.34.0","v2.33.6","v2.33.5","v2.33.4","v2.33.3","v2.33.2","v2.33.1","v2.33.0","v2.32.1","v2.32.0","v2.31.9","v2.31.8","v2.31.7","v2.31.6","v2.31.5","v2.31.4","v2.31.3","v2.31.2","v2.31.1","v2.31.0","v2.30.2","v2.30.1","v2.30.0","v2.29.5","v2.29.4","v2.29.3","v2.29.2","v2.29.0","v2.28.9","v2.28.8","v2.28.7","v2.28.6","v2.28.4","v2.28.3","v2.28.2","v2.28.1","v2.28.0","v2.27.2","v2.27.1","v2.27.0","v2.26.5","v2.26.4","v2.26.3","v2.26.2","v2.26.1","v2.26.0","v2.24.1","v2.24.0","v2.23.0","v2.22.21","v2.22.20","v2.22.19","v2.22.18","v2.22.17","v2.22.16","v2.22.15","v2.22.14","v2.22.13","v2.22.12","v2.22.11","v2.22.10","v2.22.9","v2.22.8","v2.22.7","v2.22.6","v2.21.1","v2.21.0","v2.20.8","v2.20.7","v2.20.6","v2.20.5","v2.20.4","v2.20.3","v2.20.2","v2.20.1","v2.20.0","v2.19.6","v2.19.5","v2.19.4","v2.19.3","v2.19.2","v2.19.1","v2.19.0","v2.18.10","v2.18.9","v2.18.8","v2.18.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44694.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L"}]}