CVE-2026-33891

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductDigitalbazaar Forge
PublishedMar 27, 2026
First seenMar 27, 2026
Weakness typeCWE-835CWE-835

How to fix

Affected products

ProductAffected versionsFixed in
digitalbazaar forgev ≤ 1.3.3—
node-forgenpmv < 1.4.01.4.0

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