CVE-2026-65598
8.9
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n8n-io | n8n | 0 < 1.123.64 | affected |
| n8n-io | n8n | 1.123.64 | unaffected |
| n8n-io | n8n | 0 < 2.30.1 | affected |
| n8n-io | n8n | 2.30.1 | unaffected |
| n8n-io | n8n | 0 < 2.29.8 | affected |
| n8n-io | n8n | 2.29.8 | unaffected |
Weaknesses
- CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-g3r5-9h93-4j2c
- https://www.vulncheck.com/advisories/n8n-before-remote-code-execution-via-git-clone
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