CVE-2026-33637 (Low) detected in faraday-2.14.0.gem

Vulnerable Library - faraday-2.14.0.gem

Library home page: https://rubygems.org/gems/faraday-2.14.0.gem

Sample Path to Dependency File: /Gemfile.lock

Path to vulnerable library: /vendor/cache/faraday-2.14.0.gem

Dependency Hierarchy:

• googleauth-1.15.1.gem (Root Library)
  • ❌ faraday-2.14.0.gem (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, forwarding connection-scoped values such as Authorization headers and default query parameters. This issue has been fixed in version 2.14.3.

Publish Date: 2026-05-19

URL: CVE-2026-33637

CVSS 3 Score Details (0.0)

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: None
  • Availability Impact: None

Suggested Fix

Type: Upgrade version

Origin: https://github.com/advisories/GHSA-5rv5-xj5j-3484

Release Date: 2026-05-18

Fix Resolution: faraday - 2.14.2