CVE-2026-21716

A flaw was found in Node.js. An incomplete security fix allows code operating under restricted file system write permissions to bypass these limitations. This vulnerability enables the modification of file permissions and ownership on already-open files, even when explicit write access is denied. Such a bypass could lead to unauthorized changes to system files.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.