Server-side Request Forgery (SSRF) Affecting faraday package, versions >=2.0.0.alpha-1, <2.14.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RUBY-FARADAY-16755445
- published19 May 2026
- disclosed18 May 2026
- creditTomoya Yamashita
Introduced: 18 May 2026
NewCVE-2026-33637 (opens in a new tab)How to fix?
Upgrade faraday to version 2.14.2 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) through the build_exclusive_url function. An attacker can redirect requests to an attacker-controlled host while preserving sensitive connection-scoped headers such as Authorization by supplying a protocol-relative URI object as the request target.
Note: This vulnerability bypasses the fix for CVE-2026-25765.