🛡️ CVE-2026-33637
🟢 CVSS 2.0 — Low ✅ No Known Exploit CWE-918 NVD
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity LOW
CVSS Score 2.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
CWE CWE-918
Public Exploit ✅ No
Source NVD
Published 2026-05-18
Updated 2026-06-15
Modified 2026-06-05
Fix URL N/A

Affected Packages

Software From version Fixed in
faraday 2.0.0 2.14.2
unknown — —

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