CVE-2026-110841 n8n before 2.41.4 and 2.42.0 Authorization Bypass in Agent Chat Resume Tool Approval
Authenticated users can bypass authorization to read private conversations and approve tool calls, leading to data exposure and code execution.
- 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-2026-110841?
CVE-2026-110841 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 2.42.0 contains an authorization bypass in the agent chat resume endpoint, which accepts a run identifier from the request body without verifying that the suspended checkpoint belongs to the caller. Authenticated project members can list and read other members' private agent conversations through project-scoped endpoints, then approve their pending tool calls, causing the tools to execute and write results into the victim's conversation.
Weakness: CWE-639
Which versions are affected by CVE-2026-110841?
How do I fix CVE-2026-110841?
No fix has been published for CVE-2026-110841 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-2026-110841 being exploited?
There is no known exploitation of CVE-2026-110841 in the wild and no public exploit code.
Sources
Also known as GHSA-p3pg-xw4f-m72c, GHSA-v38m-4hx4-9x2r.