CVE-2026-85165
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.
- Published Sep 3, 2026
- CVSS 7.2 high
- 0.6% chance of exploitation in the next 30 days (EPSS)
- A fix is available