Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| digitalbazaar / forge | affected < 1.4.0 |
CWE
CWE-835
References
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-5m6q-g25r-mvwx
- https://github.com/digitalbazaar/forge/commit/9bb8d67b99d17e4ebb5fd7596cd699e11f25d023
ADP enrichment
No English description supplied.
No references supplied.
A flaw was found in the node-forge library, a JavaScript implementation of Transport Layer Security. This vulnerability, inherited from the bundled jsbn library, allows a remote attacker to cause a Denial of Service (DoS). When the BigInteger.modInverse() function is called with a zero value, it enters an infinite loop, causing the process to hang indefinitely and consume 100% of the CPU resources.
- https://access.redhat.com/security/cve/CVE-2026-33891
- https://bugzilla.redhat.com/show_bug.cgi?id=2452450
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33891.json
- https://access.redhat.com/errata/RHSA-2026:24761
- https://access.redhat.com/errata/RHSA-2026:24762
- https://access.redhat.com/errata/RHSA-2026:34342
- https://access.redhat.com/errata/RHSA-2026:9742
- https://access.redhat.com/errata/RHSA-2026:13826