CVE-2026-110850: Auth Bypass

Description

n8n before 2.41.4 and 2.42.0 before 2.42.1 does not validate credential ids stored in agent node parameters when an editor saves a shared workflow, because the check inspects only a node's credentials field. An editor can configure a Message an Agent node in inline mode with tools they control to resolve the owner's credentials and send decrypted secrets to an attacker-chosen destination.

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Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/n8n-io/n8n/security/advisories/GHSA-x25p-9mr6-cwgp https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-credential-check-bypass-via-agent-node-parameters

Frequently Asked Questions

What is CVE-2026-110850? +

n8n before 2.41.4 and 2.42.0 before 2.42.1 does not validate credential ids stored in agent node parameters when an editor saves a shared workflow, because the check inspects only a node's credentials field. An editor can configure a Message an Agent node in inline mode with tools they control to resolve the owner's credentials and send decrypted secrets to an attacker-chosen destination.

How do I check if I'm vulnerable to CVE-2026-110850? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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