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High severity7.5NVD Advisory· Published Mar 27, 2026· Updated Apr 8, 2026

CVE-2026-33891

CVE-2026-33891

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
node-forgenpm
< 1.4.01.4.0

Affected products

31

Patches

Vulnerability mechanics

References

4

News mentions

0

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