CVE-2026-33896

CRITICAL EPSS 8.3%
Published Mar 27, 20263mo ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Mar 27, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
8.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-295

Affected Products 1

VendorProductVersionRange
digitalbazaarforge* ≤1.3.3

References 2

  • github.com https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90
    Patch
  • github.com https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90
    Patch