Vulnerability Description
Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting depth. A crafted query string causes Faraday to build a deeply nested Ruby Hash structure. The internal dehash routine then recursively walks this attacker-controlled structure without a depth limit. At sufficient depth, Ruby raises an uncaught SystemStackError (stack level too deep), crashing the calling thread or worker. This can lead to denial of service in applications that pass attacker-controlled query strings to Faraday's nested query parsing or URL-building paths. This vulnerability is fixed in 1.10.6 and 2.14.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Faraday Project | Faraday | >= 1.0.0, < 1.10.6 |
Related Weaknesses (CWE)
References
- https://github.com/lostisland/faraday/security/advisories/GHSA-98m9-hrrm-r99rExploitMitigationVendor Advisory
- https://github.com/lostisland/faraday/security/advisories/GHSA-98m9-hrrm-r99rExploitMitigationVendor Advisory
FAQ
What is CVE-2026-54297?
CVE-2026-54297 is a vulnerability with a CVSS score of 7.5 (HIGH). Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query para...
How severe is CVE-2026-54297?
CVE-2026-54297 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54297?
Check the references section above for vendor advisories and patch information. Affected products include: Faraday Project Faraday.