CVE-2026-33637

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Source
https://cve.org/CVERecord?id=CVE-2026-33637
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33637.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-33637
Aliases
Downstream
Related
Published
2026-05-19T17:44:42.557Z
Modified
2026-06-18T03:56:01.840827134Z
Severity
  • 0.0 (None) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N CVSS Calculator
Summary
Faraday: Protocol-relative URI objects still bypass host scoping (possible incomplete fix for GHSA-33mh-2634-fwr2)
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#buildexclusiveurl. 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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33637.json",
    "cwe_ids": [
        "CWE-918"
    ]
}
References

Affected packages

Git / github.com/lostisland/faraday

Affected ranges

Type
GIT
Repo
https://github.com/lostisland/faraday
Events
Introduced
0a5714e8c89bb0aacf414ed00e70b9d70b4097e2
Fixed
2ecd5e05388303087c3f6872ef7f98f260e9560f
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "2.0.0"
        },
        {
            "last_affected": "2.14.2"
        },
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.14.2"
        }
    ],
    "cpe": "cpe:2.3:a:faraday_project:faraday:*:*:*:*:*:*:*:*"
}

Affected versions

v2.*
v2.0.0
v2.0.1
v2.1.0
v2.10.0
v2.10.1
v2.11.0
v2.12.0
v2.12.1
v2.12.2
v2.12.3
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.14.0
v2.14.1
v2.2.0
v2.3.0
v2.4.0
v2.5.0
v2.5.1
v2.5.2
v2.6.0
v2.7.0
v2.7.1
v2.7.10
v2.7.11
v2.7.12
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.7.7
v2.7.8
v2.7.9
v2.8.0
v2.8.1
v2.9.0
v2.9.1
v2.9.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33637.json"