{"id":"CVE-2026-55608","revision":"7f1fa0f2f76d4037a1109e6bc4f2468d","records":[{"revision":"7f1fa0f2f76d4037a1109e6bc4f2468d","observedAt":"2026-10-25T14:19:05.298+00:00","statement":{"source":"nvd","id":"CVE-2026-55608","aliases":[],"title":"n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.57.4, multi-tenant HTTP mode with ENABLE_MULTI_TENANT=true could allow an authenticated tenant to access default-s…","description":"n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.57.4, multi-tenant HTTP mode with ENABLE_MULTI_TENANT=true could allow an authenticated tenant to access default-scope workflow_versions backups instead of being confined to the tenant scope, exposing or deleting workflow-version backups from prior single-tenant deployments or migrations. This issue is fixed in version 2.57.4.","state":0,"publishedAt":"2026-07-15T21:16:55.307+00:00","modifiedAt":"2026-10-24T21:10:00.13+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","score":4.2,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/czlonkowski/n8n-mcp/commit/1f42899749ed0c584fb6b4fd63d75233c3edee59","https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.57.4","https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-2cf7-hpwf-47h9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55608","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-200","CWE-863"],"productCriteria":["cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-07-15T21:16:55.307","lastModified":"2026-10-24T21:10:00.130"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55608","identifiers":["CVE-2026-55608"]},"retained":false,"historicalAffected":[]}],"coverage":[]}