CVE-2026-119189

CVE-2026-119189 · Forge: X.509 pathLenConstraint not enforced by verifyCertificateChain() for CA certificates without keyUsage

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Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge enforced an X.509 CA certificate's basicConstraints.pathLenConstraint only when that certificate also carried a keyUsage extension. Exploitation requires a path-length-constrained CA without keyUsage that chains to a root trusted by the application, and an attacker who holds that CA's private key or obtains a subordinate CA certificate from it. The attacker could then construct a chain exceeding the declared path length that still passed pki.verifyCertificateChain(). Public web PKI CA certificates normally include keyUsage; private PKIs with CA certificates created without it are more likely to be affected. This issue is fixed in version 1.4.1.

CVSS 5.9 · Mittel · EPSS 0,2%

Veröffentlicht

2026-10-29T19:23:25.238Z

Aktualisiert

2026-11-03T16:22:56.742Z

Technologie-Stack: system

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