What’s Vulnerable › Vulnerabilities

CVE-2026-110851: n8n before 2.41.4 and 2.42.1 Cross-Project Agent Ownership Transfer via Agents Create Endpoint

• Severity: medium (CVSS 6.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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.x before 2.42.1 contains an authorization bypass in the Agents create endpoint, which accepts a caller-supplied Agent ID, checks permissions only against the requested project, and updates an existing Agent without verifying which project owns it. An authenticated user with read-only Agent access to another project can supply an existing Agent ID to move that Agent into their own project and rewrite its name, schema and version.

Affected products

• n8n-io n8n: before 2.41.4; from 2.42.0 before 2.42.1 — fixed in 2.41.4, 2.42.1

How to fix

Upgrade to a fixed version: n8n-io n8n 2.41.4, 2.42.1. Check the vendor advisory for mitigations.

References

• https://github.com/n8n-io/n8n/security/advisories/GHSA-2r5r-xgvc-rj4p
• https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-cross-project-agent-ownership-transfer-via-agents-create-endpoint

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