REDHAT-BUG-2452450: High severity npm/node-forge vulnerability

Q: How can I determine whether an application is affected?

Check whether it uses npm/node-forge earlier than version 1.4.0 and whether its execution can call BigInteger.modInverse() with a zero input. The affected condition causes the process to hang and consume 100% CPU.

Q: What is the recommended remediation?

Upgrade node-forge to version 1.4.0, which patches the issue.

Published Mar 27, 2026

Updated

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service (DoS) vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse() function (inherited from the bundled jsbn library). When modInverse() is called with a zero value as input, the internal Extended Euclidean Algorithm enters an unreachable exit condition, causing the process to hang indefinitely and consume 100% CPU. Version 1.4.0 patches the issue.

Affected Software

1 affected component

npm/node-forge<1.4.0

Event History

Mar 27, 2026

Data Sourced

via Red Hat·09:01 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

How can I determine whether an application is affected?

Check whether it uses npm/node-forge earlier than version 1.4.0 and whether its execution can call BigInteger.modInverse() with a zero input. The affected condition causes the process to hang and consume 100% CPU.

What is the recommended remediation?