CVE-2026-54306
CVE-2026-54306 · n8n: Prototype Pollution enables confused-deputy execution via public webhooks
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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.
CVSS 6.3 · Moyenne · EPSS 0,3% · Correctif disponible
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Pile logicielle: node