{"id":"GHSA-g3r5-9h93-4j2c","summary":"n8n: Race Condition in Git Clone Node Allows Authenticated Users to Achieve Remote Code Execution","details":"## Impact\nA TOCTOU race condition in the Git node's `clone` operation lets an authenticated user bypass its path restrictions by swapping a directory for a symlink after the path is validated but before the clone runs. This plants a crafted repository in the community node directory, which n8n loads as a custom node on the next restart, and since nodes execute JavaScript, this yields arbitrary code execution on the server.\n\nBoth self-hosted and cloud instances are affected, where authenticated users can create and run workflows using the Git node.\n\n## Patches\nUsers should upgrade to the patched version once available 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- Disable the Git node by adding `n8n-nodes-base.git` to the `NODES_EXCLUDE` environment variable.\n- Restrict network egress from the n8n instance to prevent connections to attacker-controlled git repositories.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","aliases":["CVE-2026-65598","CVE-2026-71539"],"modified":"2026-08-19T03:56:04.927861931Z","published":"2026-07-22T17:56:35Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-367"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-07-22T17:56:35Z"},"references":[{"type":"WEB","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-g3r5-9h93-4j2c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65598"},{"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-remote-code-execution-via-git-clone"}],"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-g3r5-9h93-4j2c/GHSA-g3r5-9h93-4j2c.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-g3r5-9h93-4j2c/GHSA-g3r5-9h93-4j2c.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-g3r5-9h93-4j2c/GHSA-g3r5-9h93-4j2c.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/SA:L"}]}