CVE-2026-21711 Affecting nodejs:24/nodejs-nodemon package, versions <0:3.0.3-1.module_el8.10.0+4061+f8ceeab9


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-16088890
  • published16 Apr 2026
  • disclosed9 Apr 2026

Introduced: 9 Apr 2026

CVE-2026-21711  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:24/nodejs-nodemon to version 0:3.0.3-1.module_el8.10.0+4061+f8ceeab9 or higher.
This issue was patched in ALSA-2026:7670.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:24/nodejs-nodemon package and not the nodejs:24/nodejs-nodemon package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1