EUVD-2026-101729

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, runnin...

CVE-2026-110846

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, runnin...

CVE-2026-110846 n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook

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, runnin...

CVE-2026-110846

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, runnin...

CVE-2026-110846 n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook

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, runnin...

CVE-2026-110846

The automation tool n8n versions before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the waiting-webhook endpoint. The root cause is a logic error where the system performs Send-and-Wait validation before normalizing an alternate node reference form (CWE-180). An attacker posses...

CVE-2026-110846 n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook

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, runnin...

PT-2026-114160

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.41.4 n8n versions 2.42.x prior to 2.42.1 Description A signature bypass exists in the 'waiting-webhook' endpoint. The issue occurs because the system selects Send-and-Wait validation before normalizing an alternate node...

CVE-2026-110846: Incorrect Behavior Order: Validate Before Canonicalize

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, runnin...

WS-2026-0096

n8n waiting-webhook endpoint accepted a Send-and-Wait node reference in a second form and selected the validation before normalising it, so an approval could be submitted without the required HMAC signature. A caller holding an execution's resume token can release an approval intended for someone...