DigitalBazaar Forge up to 1.4.0 Certificate Chain Verification pki.verifyCertificateChain certificate validation

Summaryinfo

A vulnerability classified as problematic was found in DigitalBazaar Forge up to 1.4.0. This vulnerability affects the function pki.verifyCertificateChain of the component Certificate Chain Verification. Such manipulation leads to certificate validation. This vulnerability is referenced as CVE-2026-119190. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in DigitalBazaar Forge up to 1.4.0. It has been rated as problematic. Affected by this issue is the function pki.verifyCertificateChain of the component Certificate Chain Verification. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. CVE summarizes:

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge parsed deprecated extension OIDs 2.5.29.10 and 2.5.29.13 as basicConstraints, and pki.verifyCertificateChain() used the first extension with that name. Exploitation requires a CA trusted by the application to issue a certificate carrying an attacker-supplied deprecated-OID extension, commonly because the CA copies extensions from a certificate signing request. By placing a permissive deprecated extension before the genuine 2.5.29.19 basicConstraints extension, the certificate holder could have the certificate accepted as a CA and issue certificates for arbitrary names, enabling server or client impersonation. If the issuing CA adds a keyUsage extension without keyCertSign, node-forge rejects the chain. This issue is fixed in version 1.4.1.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-119190 since 10/29/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 1.4.1 eliminates this vulnerability.

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Productinfo

Vendor

• DigitalBazaar

Name

• Forge

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4.0

Website

• Product: https://github.com/digitalbazaar/forge/

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