Incorrect Execution-Assigned Permissions Affecting npm package, versions <1:11.11.0-1.24.14.1.2.module+el8.10.0+24190+49a46c75


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-CENTOS8-NPM-15893459
  • published4 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-21716  (opens in a new tab)
CWE-279  (opens in a new tab)

How to fix?

Upgrade Centos:8 npm to version 1:11.11.0-1.24.14.1.2.module+el8.10.0+24190+49a46c75 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream npm package and not the npm package as distributed by Centos. See How to fix? for Centos: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