| Package | Affected versions | Patched versions |
|---|---|---|
| n8n | ≥ 2.0.0, < 2.35.4≥ 2.36.0, < 2.36.2< 1.123.73 | 2.35.42.36.21.123.73 |
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.
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