n8nPublished 14 Oct 2026NVD status: Deferred

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.

Componentn8n
Severitymedium (CVSS 6.1)
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published (NVD)2026-10-14
Affected versions
< 2.41.4
from the CVE Program record written by the CNA that assigned the CVE
Fixed in2.41.4
WeaknessCWE-639
CISA KEVnot listed

NVD 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.

What to do

  • Upgrade n8n to 2.41.4 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

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