CVE-2026-33896CRITICAL 9.1EPSS p8.2%

CVE-2026-33896CVE-2026-33896

Description

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.18% probability of exploitation · percentile 8.2% · 2026-06-19T12:03:05Z
Published2026-03-27
Last modified2026-04-14

Underlying weaknesses· 1

CWE-295

References

  1. https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90
  2. https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25
  3. https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25

1

TypeTargetConfidenceTier
WeaknessImproper Certificate Validationcwe-2950%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.