CVE-2026-33896: Digitalbazaar Forge

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, `pki.verifyCertificateChain()` does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the `basicConstraints` and `keyUsage` extensions. This allows any leaf certificate (without these extensions) to act as a CA and sign other certificates, which node-forge will accept as valid. Version 1.4.0 patches the issue.

Affected products

• Digitalbazaar Forge: up to and including 1.3.3

Published 2026-03-27. Last modified 2026-09-04.