CVE-2026-110851
n8n before 2.41.4 and 2.42.x before 2.42.1 contains an authorization bypass in the Agents create endpoint, which accepts a caller-supplied Agent ID, checks permissions only against the requested project, and updates an existing Agent without verifying which project owns it. An authenticated user with read-only Agent access to another project can supply an existing Agent ID to move that Agent into their own project and rewrite its name, schema and version.
- Score
- CVSS 4.0 6.1 Medium
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-10-14
- Last modified
- 2026-10-20
- Weaknesses
- CWE-639
Affected products
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-2r5r-xgvc-rj4p
- https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-cross-project-agent-ownership-transfer-via-agents-cre…
