CVE-2026-42042 (Medium) detected in axios-0.21.4.tgz

[mend-bolt-for-github]

CVE-2026-42042 - Medium Severity Vulnerability

Vulnerable Library - axios-0.21.4.tgz

Promise based HTTP client for the browser and node.js

Library home page: https://registry.npmjs.org/axios/-/axios-0.21.4.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/axios/package.json

Dependency Hierarchy:

• ❌ axios-0.21.4.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library's XSRF token protection logic uses JavaScript truthy/falsy semantics instead of strict boolean comparison for the withXSRFToken config property. When this property is set to any truthy non-boolean value (via prototype pollution or misconfiguration), the same-origin check (isURLSameOrigin) is short-circuited, causing XSRF tokens to be sent to all request targets including cross-origin servers controlled by an attacker. This vulnerability is fixed in 1.15.1 and 0.31.1.

Publish Date: 2026-04-24

URL: CVE-2026-42042

CVSS 3 Score Details (5.4)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-xx6v-rp6x-q39c

Release Date: 2026-04-24

Fix Resolution: 1.15.1

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