Arbitrary Code Injection Affecting n8n package, versions <2.35.4-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.88% (58th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8N-19958230
  • published20 Sept 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

CVE-2026-85169  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n to version 2.35.4-r0 or higher.

NVD Description

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

n8n versions before 1.123.73, 2.35.4, and 2.36.2 contain an expression sandbox escape in the $fromAI handler. $fromAI resolved a caller-supplied placeholder name without requiring it to be an own property and admitted reserved keys; against a primitive input value it returned a live host-prototype reference. An attacker with workflow-build privilege can walk the prototype chain to the Function constructor and compile/execute arbitrary code in the main n8n process, leading to remote code execution.

CVSS Base Scores

version 3.1