Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting n8n-oci-entrypoint package, versions <2.25.7-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8NOCIENTRYPOINT-17662885
  • published29 Jun 2026
  • disclosed23 Jun 2026

Introduced: 23 Jun 2026

NewCVE-2026-54306  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n-oci-entrypoint to version 2.25.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream n8n-oci-entrypoint package and not the n8n-oci-entrypoint package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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 Base Scores

version 3.1