{"id":"GHSA-9w78-79q7-r4fp","summary":"n8n: Authenticated SSRF via Dynamic Node Parameters Endpoints Allows Internal Network Access","details":"## Impact\n\nEndpoints in `/rest/dynamic-node-parameters/` lacked authorization scopes, making it reachable by any authenticated user with no workflow creation or execution required.\n\nBy supplying an absolute URL in the routing configuration, a caller could override the node type's declared baseURL, defeating the restriction meant to confine requests to the node's own upstream service. With SSRF protection disabled by default (`N8N_SSRF_PROTECTION_ENABLED=false`), this let an authenticated user make the n8n server issue HTTP requests to arbitrary internal targets.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to this version or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Restrict n8n instance access to fully trusted users only.\n- Set `N8N_SSRF_PROTECTION_ENABLED=true` to enable SSRF filtering for private IP ranges and cloud metadata endpoints.\n- Restrict network egress from the n8n host to limit reachable internal services.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","aliases":["CVE-2026-65593"],"modified":"2026-07-22T22:26:48.408353Z","published":"2026-07-22T22:01:10Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-07-22T22:01:10Z","nvd_published_at":null,"cwe_ids":["CWE-918"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-9w78-79q7-r4fp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65593"},{"type":"PACKAGE","url":"https://github.com/n8n-io/n8n"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.64"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.29.8"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.30.1"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/n8n-before-ssrf-via-dynamic-node-parameters"}],"affected":[{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.123.64"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9w78-79q7-r4fp/GHSA-9w78-79q7-r4fp.json"}},{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.30.0"},{"fixed":"2.30.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9w78-79q7-r4fp/GHSA-9w78-79q7-r4fp.json"}},{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0-rc.0"},{"fixed":"2.29.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-9w78-79q7-r4fp/GHSA-9w78-79q7-r4fp.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:L/SA:N"}]}