Description (CNA)
n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in the main n8n process (a sandbox escape), leading to a denial of service. Both self-hosted and cloud instances running the VM expression engine are affected.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n8n-io / n8n | affected 0 before 1.123.67; unaffected 1.123.67 |
| n8n-io / n8n | affected 0 before 2.32.1; unaffected 2.32.1 |
| n8n-io / n8n | affected 0 before 2.31.5; unaffected 2.31.5 |
CWE
CWE-1321
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-hx4h-vr3m-45vh
- https://www.vulncheck.com/advisories/n8n-before-prototype-pollution-via-vm-expression-engine
ADP enrichment
No English description supplied.
No references supplied.