CVE-2026-85169
n8n before 1.123.73 Remote Code Execution via $fromAI Prototype Leak
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Sep 3, 2026 |
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Affected Versions
n8n-io / n8n
0 < 1.123.73
n8n-io / n8n
0 < 2.36.2
n8n-io / n8n
0 < 2.35.4
References
Credits
🔍 Haruna38