Critical severity9.9NVD Advisory· Published Sep 3, 2026· Updated Sep 10, 2026
CVE-2026-85165
CVE-2026-85165
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.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/n8n-io/n8n/security/advisories/GHSA-fg85-4wv2-p98jnvdMitigationVendor Advisory
- www.vulncheck.com/advisories/n8n-before-2.36.2-expression-sandbox-bypass-via-spreadelementnvdThird Party Advisory
News mentions
1- N8n Io: Nine Vulnerabilities Including RCE and Credential Exposure Disclosed TogetherVypr Intelligence · Sep 3, 2026