CVE-2026-57826

An issue was discovered in openHiTLS 0.2.0 through 0.3.2. In the X.509 certificate chain verification, the basic constraints extension and CA flag processing of intermediate CAs are only verified for v3 certificates, and v1/v2 certificates are ignored...

CVE-2026-33896 Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

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...

GHSA-2328-F5F3-GJ25 Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

Summary 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-for...