CVE-2026-119190
CVE-2026-119190 · Forge: X.509 basicConstraints bypass in verifyCertificateChain() via deprecated extension OIDs 2.5.29.10 and 2.5.29.13
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.4 · High · EPSS 0.2% · Public exploit · Fix available
- Published
- Updated
Affected products and versions
forge
- Versions
- < 1.4.1: Affected
No fix published
node-forge npm
- Affected ranges
- SEMVER: < 1.4.1
Update to 1.4.1
node-node-forge Ubuntu:20.04:LTS
- Versions
- 0.8.5~dfsg-2
- 0.9.1~dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
node-node-forge Ubuntu:22.04:LTS
- Versions
- 0.10.0~dfsg-3
- 1.2.1~dfsg-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published