{"id":"GHSA-wxx7-mcgf-j869","summary":"n8n has Potential Remote Code Execution via Merge Node","details":"## Impact\nAn authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server.\n\n## Patches\nThe issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the Merge node by adding `n8n-nodes-base.merge` to the `NODES_EXCLUDE` environment variable.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","aliases":["CVE-2026-27497"],"modified":"2026-02-28T05:14:22.379694Z","published":"2026-02-25T21:23:30Z","database_specific":{"github_reviewed_at":"2026-02-25T21:23:30Z","nvd_published_at":"2026-02-25T23:16:21Z","cwe_ids":["CWE-89","CWE-94"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27497"},{"type":"PACKAGE","url":"https://github.com/n8n-io/n8n"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.22"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.10.1"},{"type":"WEB","url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.9.3"}],"affected":[{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.123.22"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-wxx7-mcgf-j869/GHSA-wxx7-mcgf-j869.json"}},{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.9.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-wxx7-mcgf-j869/GHSA-wxx7-mcgf-j869.json"}},{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.10.0"},{"fixed":"2.10.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-wxx7-mcgf-j869/GHSA-wxx7-mcgf-j869.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}]}