Race condition in Node.js - CVE-2025-55131
Published: April 17, 2026
Vulnerability identifier: #VU126386
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-55131
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Node.js Foundation
Affected software:
Node.js
Node.js
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information or corrupt data.
The vulnerability exists due to a race condition in buffer allocation logic when using the vm module with the timeout option. A remote user can influence workload and timeout behavior to disclose sensitive information or corrupt data.
Exploitation typically requires precise timing or in-process code execution.
How to mitigate CVE-2025-55131
Install security update from vendor's website.