What’s Vulnerable › Vulnerabilities

CVE-2026-110841: n8n before 2.41.4 and 2.42.0 Authorization Bypass in Agent Chat Resume Tool Approval

• Severity: medium (CVSS 6.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-20
• Weakness: CWE-639

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.

Affected products

• n8n-io n8n: before 2.41.4 — fixed in 2.41.4

How to fix

Upgrade to a fixed version: n8n-io n8n 2.41.4. Check the vendor advisory for mitigations.

References

• 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

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