CVE-2026-33896: fallo de gravedad alta en digitalbazaar forge
Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.4epss 0.4%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Productos afectados
digitalbazaar · forgeCVEs relacionadas — digitalbazaar forge
En el mismo producto, de las más peligrosas a las menos.
CVE-2022-24772HIGHImproper Verification of Cryptographic Signature in `node-forge`EPSS 1.1%CVE-2022-24773MEDIUMImproper Verification of Cryptographic Signature in `node-forge`EPSS 1.0%CVE-2022-24771HIGHImproper Verification of Cryptographic Signature in node-forgeEPSS 0.8%CVE-2026-33891HIGHForge has Denial of Service via Infinite Loop in BigInteger.modInverse() with Zero InputEPSS 0.6%CVE-2026-118779HIGHForge: Regular expression denial of service in PEM decoding (pem.decode)EPSS 0.6%CVE-2026-33895HIGHForge has signature forgery in Ed25519 due to missing S > L checkEPSS 0.5%
Referencias
https://access.redhat.com/errata/RHSA-2026:13826https://access.redhat.com/errata/RHSA-2026:24761https://access.redhat.com/errata/RHSA-2026:34342https://access.redhat.com/errata/RHSA-2026:9742https://access.redhat.com/security/cve/CVE-2026-33896https://bugzilla.redhat.com/show_bug.cgi?id=2452458https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33896.json