CVE-2026-85165 n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement
Authenticated users with workflow-edit permissions can bypass the expression sandbox to execute arbitrary code and mutate host objects.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-85165?
CVE-2026-85165 is a high-severity code injection vulnerability in N8n N8n, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
n8n versions before 2.36.2 contain an expression sandbox bypass vulnerability where free identifiers in spread, computed-key, switch-case, or class-extension positions resolve against process globals. Authenticated users with workflow-edit permission can mutate host objects through expression evaluation, with changes persisting process-wide until restart.
Weakness: CWE-95
Which versions are affected by CVE-2026-85165?
It affects 1 product.
Products include N8n N8n.
How do I fix CVE-2026-85165?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-85165 being exploited?
There is no known exploitation of CVE-2026-85165 in the wild and no public exploit code.
Other vulnerabilities in N8n N8n
- CVE-2025-68613 n8n Improper Control of Dynamically-Managed Code Resources
- CVE-2026-21877 n8n is vulnerable to Remote Code Execution via Arbitrary File Write
- CVE-2026-21858 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling
- CVE-2026-1470 n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution
- CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node
Sources
Also known as GHSA-fg85-4wv2-p98j, GHSA-qhgm-jv25-h5h2, MINI-g483-6x7c-hqjr.