CVE-2026-21711

A flaw in Node.js Permission Model network enforcement leaves Unix Domain Socket (UDS) server operations without the required permission checks, while all comparable network paths correctly enforce them. As a result, code running under `--permission` without `--allow-net` can create and expose local IPC endpoints, allowing communication with other processes on the same host outside of the intended network restriction boundary. This vulnerability affects Node.js **25.x** processes using the Permission Model where `--allow-net` is intentionally omitted to restrict network access. Note that `--allow-net` is currently an experimental feature.

The following products are affected by CVE-2026-21711 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21711.

URL	Resource
https://nodejs.org/en/blog/vulnerability/march-2026-security-releases