CVE-2026-110851 n8n before 2.41.4 and 2.42.1 Cross-Project Agent Ownership Transfer via Agents Create Endpoint
An authenticated user can bypass authorization checks to transfer ownership of agents from other projects to their own, modifying agent details.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110851?
CVE-2026-110851 is a medium-severity missing authorization vulnerability in n8n-io n8n, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-110851?
How do I fix CVE-2026-110851?
No fix has been published for CVE-2026-110851 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-110851 being exploited?
There is no known exploitation of CVE-2026-110851 in the wild and no public exploit code.
Sources
Also known as GHSA-2r5r-xgvc-rj4p, GHSA-wrfc-h8h3-x3xj.