VYPR
High severity7.5NVD Advisory· Published Jun 24, 2026· Updated Aug 14, 2026

CVE-2026-54297

CVE-2026-54297

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
faradayRubyGems
>= 2.0.0, < 2.14.32.14.3
faradayRubyGems
>= 1.0.0, < 1.10.61.10.6

Affected products

27

Patches

Vulnerability mechanics

References

13

News mentions

0

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