CVE-2026-42038 (Medium) detected in axios-0.19.0.tgz

[mend-bolt-for-github]

CVE-2026-42038 - Medium Severity Vulnerability

Vulnerable Library - axios-0.19.0.tgz

Promise based HTTP client for the browser and node.js

Library home page: https://registry.npmjs.org/axios/-/axios-0.19.0.tgz

Path to dependency file: /day59/package.json

Path to vulnerable library: /day59/package.json,/day60/package.json

Dependency Hierarchy:

• browser-sync-2.26.13.tgz (Root Library)
  • localtunnel-2.0.0.tgz
    • ❌ axios-0.19.0.tgz (Vulnerable Library)

Found in HEAD commit: c88b9429eb68a85b22f0e39cac7bf20b89cb6709

Found in base branch: master

Vulnerability Details

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, he fix for no_proxy hostname normalization bypass is incomplete. When no_proxy=localhost is set, requests to 127.0.0.1 and [::1] still route through the proxy instead of bypassing it. The shouldBypassProxy() function does pure string matching — it does not resolve IP aliases or loopback equivalents. This vulnerability is fixed in 1.15.1 and 0.31.1.

Publish Date: 2026-04-24

URL: CVE-2026-42038

CVSS 3 Score Details (6.8)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-m7pr-hjqh-92cm

Release Date: 2026-04-24

Fix Resolution (axios): 0.31.1

Direct dependency fix Resolution (browser-sync): 3.0.0

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