All vulnerabilities
CVE-2026-118640GHSA-43v8-hjhm-chjp

n8n before 1.123.85, 2.43.5, and 2.44.1 Chat Hub Authorization Bypass

n8n-io n8nFrameworks
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in1.123.85Also 2.44.1, 2.43.5CVE List
Published28 Oct 2026Updated 28 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 6

  • n8naffected: all versions before 1.123.85CVE List
  • n8nunaffected: 1.123.85CVE List
  • n8naffected: 2.44.0 before 2.44.1CVE List
  • n8nunaffected: 2.44.1CVE List
  • n8naffected: 2.0.0 before 2.43.5CVE List
  • n8nunaffected: 2.43.5CVE List

References 2