| Component | n8n |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Published (NVD) | 2026-08-11 |
| Last modified | 2026-08-28 |
| Affected versions | n8n < 2.31.5 n8n < 2.31.5 n8n = 2.32.0 n8n = 2.32.0 |
| Fixed in | 2.31.5 |
| Weakness | CWE-863 |
| CISA KEV | not listed |
NVD description
n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.
What to do
- Upgrade n8n to
2.31.5or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-72771
- https://github.com/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8
- https://www.vulncheck.com/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes
Read more
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