Detections
Analytics
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.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33891.json
https://github.com/digitalbazaar/forge/security/advisories/GHSA-5m6q-g25r-mvwx
https://github.com/digitalbazaar/forge/commit/9bb8d67b99d17e4ebb5fd7596cd699e11f25d023
https://bugzilla.redhat.com/show_bug.cgi?id=2452450
https://access.redhat.com/security/cve/CVE-2026-33891
https://access.redhat.com/errata/RHSA-2026:9742
https://access.redhat.com/errata/RHSA-2026:34342
https://access.redhat.com/errata/RHSA-2026:24762