CVE-2026-21715 Affecting nodejs:24/nodejs-packaging-bundler package, versions <0:2021.06-6.module_el8.10.0+4086+70facd4a


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-16088932
  • published16 Apr 2026
  • disclosed9 Apr 2026

Introduced: 9 Apr 2026

CVE-2026-21715  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:24/nodejs-packaging-bundler to version 0:2021.06-6.module_el8.10.0+4086+70facd4a 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-packaging-bundler package and not the nodejs:24/nodejs-packaging-bundler package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A flaw in Node.js Permission Model filesystem enforcement leaves fs.realpathSync.native() without the required read permission checks, while all comparable filesystem functions correctly enforce them.

As a result, code running under --permission with restricted --allow-fs-read can still use fs.realpathSync.native() to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.

This vulnerability affects 20.x, 22.x, 24.x, and 25.x processes using the Permission Model where --allow-fs-read is intentionally restricted.

CVSS Base Scores

version 3.1