Uncaught Exception Affecting nodejs/node package, versions [,20.20.2)[21.0.0,22.22.2)[23.0.0,24.14.1)[25.0.0,25.8.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-NODEJSNODE-15763400
  • published25 Mar 2026
  • disclosed25 Mar 2026
  • creditmbarbs

Introduced: 25 Mar 2026

CVE NOT AVAILABLE CWE-248  (opens in a new tab)

How to fix?

Upgrade nodejs/node to version 20.20.2, 22.22.2, 24.14.1, 25.8.2 or higher.

Overview

Affected versions of this package are vulnerable to Uncaught Exception in the TLS module when a SNICallback throws synchronously on unexpected input the exception bypasses TLS error handlers and propagates as an uncaught exception. A remote attacker can crash or exhaust resources of a TLS server by sending input that causes the callback to throw an error.

Note:

This is caused by an incomplete fix for CVE-2026-21637.

CVSS Base Scores

version 4.0
version 3.1