UBUNTU-CVE-2026-25765 (CVE-2026-25765)
Vulnerability from osv_ubuntu – Published: 2026-02-09 21:15 – Updated: 2026-05-20 15:26 – Source website
VLAI
Details
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.
Severity
5.8 (Medium)
N/A (UNKNOWN)
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "0.8.7-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@0.8.7-1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.8.7-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "0.9.2-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@0.9.2-3?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.1-1",
"0.9.2-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "0.9.2-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@0.9.2-3?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.2-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "0.15.4-3ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@0.15.4-3ubuntu0.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.15.4-3",
"0.15.4-3ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "1.1.0-7"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@1.1.0-7?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.0-6",
"1.1.0-7"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "2.7.1-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@2.7.1-2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.0-7",
"2.7.1-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "2.12.2-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@2.12.2-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.0-2",
"2.12.2-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ruby-faraday",
"binary_version": "2.14.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "ruby-faraday",
"purl": "pkg:deb/ubuntu/ruby-faraday@2.14.1-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.12.2-1",
"2.14.0-1",
"2.14.1-1"
]
}
],
"aliases": [],
"details": "Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday\u0027s build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby\u0027s URI#merge to combine the connection\u0027s 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\u0027s host/authority component. This means that if any application passes user-controlled input to Faraday\u0027s 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.",
"id": "UBUNTU-CVE-2026-25765",
"modified": "2026-05-20T15:26:06Z",
"published": "2026-02-09T21:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-25765"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-25765"
},
{
"type": "REPORT",
"url": "https://github.com/lostisland/faraday/commit/a6d3a3a0bf59c2ab307d0abd91bc126aef5561bc"
},
{
"type": "REPORT",
"url": "https://github.com/lostisland/faraday/releases/tag/v2.14.1"
},
{
"type": "REPORT",
"url": "https://github.com/lostisland/faraday/security/advisories/GHSA-33mh-2634-fwr2"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-25765"
]
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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