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CVE-2026-33895 (High) detected in node-forge-1.3.3.tgz - autoclosed #317

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Description

@mend-bolt-for-github

CVE-2026-33895 - High Severity Vulnerability

Vulnerable Library - node-forge-1.3.3.tgz

JavaScript implementations of network transports, cryptography, ciphers, PKI, message digests, and various utilities.

Library home page: https://registry.npmjs.org/node-forge/-/node-forge-1.3.3.tgz

Path to dependency file: /ui/package.json

Path to vulnerable library: /ui/node_modules/.pnpm/node-forge@1.3.3/node_modules/node-forge/package.json

Dependency Hierarchy:

  • @postgres.ai/ce-4.0.3.tgz (Root Library)
    • react-scripts-5.0.1.tgz
      • webpack-dev-server-4.15.2.tgz
        • selfsigned-2.4.1.tgz
          • node-forge-1.3.3.tgz (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Forge (also called "node-forge") is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order ("S >= L"). A valid signature and its "S + L" variant both verify in forge, while Node.js "crypto.verify" (OpenSSL-backed) rejects the "S + L" variant, as defined by the specification. This class of signature malleability has been exploited in practice to bypass authentication and authorization logic (see CVE-2026-25793, CVE-2022-35961). Applications relying on signature uniqueness (i.e., dedup by signature bytes, replay tracking, signed-object canonicalization checks) may be bypassed. Version 1.4.0 patches the issue.

Publish Date: 2026-03-27

URL: CVE-2026-33895

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-03-27

Fix Resolution: https://github.com/digitalbazaar/forge.git - v1.4.0


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