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CVE-2026-33896

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-33896

Severity

7.4

High

CVSS V3

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Summary

Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

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.

References

Affected packages

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