Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-33891

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.4%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-33891


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