PT-2026-103793 · N8N Io · N8N

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CVE-2026-103260

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Published

2026-10-01

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Updated

2026-10-01

CVSS v3.1

4.0

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
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.

Fix

Missing Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-103260

Affected Products

N8N