CVE-2026-25765

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a user-supplied path. Per RFC 3986, protocol-relative URLs (e.g. //evil.com/path) are treated as network-path references that override the base URL's host/authority component. This means that if any application passes user-controlled input to Faraday's get(), post(), build_url(), or other request methods, an attacker can supply a protocol-relative URL like //attacker.com/endpoint to redirect the request to an arbitrary host, enabling Server-Side Request Forgery (SSRF). This vulnerability is fixed in 2.14.1.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/lostisland/faraday/commit/a6d3a3a0bf59c2ab307d0abd91bc126aef5561bc	Patch
https://github.com/lostisland/faraday/releases/tag/v2.14.1	Product Release Notes
https://github.com/lostisland/faraday/security/advisories/GHSA-33mh-2634-fwr2	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:faraday_project:faraday::::::::
	cpe:2.3:a:faraday_project:faraday::::::::

History

No history.

Information

Published : 2026-02-09 21:15

Updated : 2026-02-20 21:03

NVD link : CVE-2026-25765

Mitre link : CVE-2026-25765

CVE.ORG link : CVE-2026-25765

JSON object : View

Products Affected

faraday_project

faraday

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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