CVE-2026-103260 — n8n before 2.39.6 and 2.40.x before 2.40.1 Approval Bypass via Send and Wait Node
n8n versions before 2.39.6 and 2.40.0 before 2.40.1 contain an approval bypass vulnerability in the Send and Wait node's Approve Within Chat mode. Attackers can submit resume re…
Published: 2026-10-01 · CVSS: 6.3 · CVSS 4.0
n8n versions before 2.39.6 and 2.40.0 before 2.40.1 contain an approval bypass vulnerability in the Send and Wait node's Approve Within Chat mode. Attackers can submit resume requests without verification of the requester's identity or approval permissions, allowing unauthenticated users to advance waiting executions and trigger guarded actions.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7