CVE-2026-54306
Description
n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, a prototype pollution vulnerability allowed a crafted public webhook payload to inject attacker-controlled fields into workflow data during internal object copying. These fields could be surfaced and consumed as normal values by downstream built-in nodes. Where a workflow combines a public webhook with action nodes that consume the resulting fields, an attacker could cause the workflow to act as a confused deputy — targeting unintended records or issuing outbound requests using the workflow owner's configured credentials. This vulnerability is fixed in 2.25.7 and 2.26.2.
How to fix
- n8n n8n2.25.7, 2.26.2 or later
- n8n2.26.2, 2.25.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| n8n n8n | v < 2.25.7, 2.26.0 ≤ v < 2.26.2 | 2.25.7, 2.26.2 |
| n8nnpm | 2.26.0 ≤ v < 2.26.2, v < 2.25.7 | 2.26.2, 2.25.7 |
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