n8n before 1.123.64, 2.29.8, and 2.30.1 contains a TOCTOU race condition in the Git node's clone operation that allows authenticated users to bypass path restrictions by swapping a directory for a symlink after the path is validated but before the clone runs. This lets an attacker plant a crafted repository in the community node directory, which n8n loads as a custom node on the next restart, executing arbitrary JavaScript on the server. Both self-hosted and cloud instances are affected.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/n8n-io/n8n/security/advisories/GHSA-g3r5-9h93-4j2c Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.9 · n8nNVD modified 2026-10-24 17:10
Affected (CPE criteria) 4
cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*
References 2
- https://github.com/n8n-io/n8n/security/advisories/GHSA-g3r5-9h93-4j2c Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/n8n-before-remote-code-execution-via-git-clone Third Party Advisory