Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digitalbazaar | Forge | <= 1.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123Patch
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25Vendor AdvisoryExploit
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25Vendor AdvisoryExploit
FAQ
What is CVE-2026-33896?
CVE-2026-33896 is a vulnerability with a CVSS score of 7.4 (HIGH). 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...
How severe is CVE-2026-33896?
CVE-2026-33896 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33896?
Check the references section above for vendor advisories and patch information. Affected products include: Digitalbazaar Forge.