CVE-2026-21716 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-16088942
  • published16 Apr 2026
  • disclosed9 Apr 2026

Introduced: 9 Apr 2026

CVE-2026-21716  (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.

An incomplete fix for CVE-2024-36137 leaves FileHandle.chmod() and FileHandle.chown() in the promises API without the required permission checks, while their callback-based equivalents (fs.fchmod(), fs.fchown()) were correctly patched.

As a result, code running under --permission with restricted --allow-fs-write can still use promise-based FileHandle methods to modify file permissions and ownership on already-open file descriptors, bypassing the intended write restrictions.

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

CVSS Base Scores

version 3.1