CVE-2026-110841

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.

• https://github.com/n8n-io/n8n/security/advisories/GHSA-p3pg-xw4f-m72c
• https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.0-authorization-bypass-in-agent-chat-resume-tool-approval