{"id":"CVE-2026-118640","published":"2026-10-28T19:17:31.707","lastModified":"2026-10-28T19:17:31.840","description":"n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat Hub that allows chat-only users to register restricted tool types. Users with the global:chatUser role can add and run tools through chat to execute sandboxed code, access permitted files, and use instance workflows, Data Tables, and agents.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwes":["CWE-863"],"vendors":[],"products":[],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-43v8-hjhm-chjp","tags":[]},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-chat-hub-authorization-bypass","tags":[]}],"exploitRefs":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-43v8-hjhm-chjp","tags":[]}],"hasPoc":true,"ai":null}