Uncaught Exception Affecting nodejs package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (11th percentile)

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 Learn

Learn about Uncaught Exception vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CONAN-NODEJS-14982195
  • published16 Jan 2026
  • disclosed13 Jan 2026
  • credit0xmaxhax

Introduced: 13 Jan 2026

CVE-2026-21637  (opens in a new tab)
CWE-248  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Uncaught Exception in the TLS module when a TLS server is configured with pskCallback or ALPNCallback. A remote attacker can crash or exhaust resources of a TLS server by sending input that causes the callback to throw an error.

CVSS Base Scores

version 4.0
version 3.1