CVE-2026-21711 Affecting nodejs-packaging-bundler package, versions <0:2021.06-6.module+el9.7.0+40153+4d595597


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0% (1st percentile)

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  • Snyk IDSNYK-ROCKY9-NODEJSPACKAGINGBUNDLER-16011236
  • published13 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-21711  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 nodejs-packaging-bundler to version 0:2021.06-6.module+el9.7.0+40153+4d595597 or higher.
This issue was patched in RLSA-2026:7350.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs-packaging-bundler package and not the nodejs-packaging-bundler package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 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