High · published July 30, 2026
A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries.
Under `--permission`, an attacker who is granted access to one path can abuse boundary handling to read from or write to paths outside the intended filesystem allowlist.
This vulnerability affects Node.js **main**, **22.x**, **24.x**, and **26.x**.
| Product | Versions | Fixed in |
|---|---|---|
| nodejs/node.js | ≥ 22.0, ≤ 22.23.1 | — |
| nodejs/node.js | ≥ 24.0.0, ≤ 24.18.0 | — |
| nodejs/node.js | ≥ 26.0.0, ≤ 26.5.0 | — |