CVE-2026-110846

UNKNOWN 0.0

n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the waiting-webhook endpoint, which selects Send-and-Wait validation before normalising an alternate node reference form. Attackers holding an execution's resume token can approve waiting executions meant for others, running downstream actions under the workflow owner's credentials, potentially including command execution.

CWE	CWE-180
Vendor	n8n-io
Product	n8n
Published	Oct 14, 2026

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Affected Versions

n8n-io / n8n

0 < 2.41.4 2.42.0 < 2.42.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh vulncheck.com: https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-send-and-wait-hmac-signature-bypass-via-waiting-webhook

Credits

🔍 n0paew