CVE-2026-54297Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters.
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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
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-674, CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
faraday_project faraday faraday_project:faraday | from 1.0.0 before 1.10.6; from 2.0.0 before 2.14.3 | NVD |
References
- https://github.com/lostisland/faraday/security/advisories/GHSA-98m9-hrrm-r99rexploit, mitigation, vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:50221
- https://access.redhat.com/errata/RHSA-2026:50222
- https://access.redhat.com/errata/RHSA-2026:50223
- https://access.redhat.com/errata/RHSA-2026:50263
- https://access.redhat.com/security/cve/CVE-2026-54297
- https://bugzilla.redhat.com/show_bug.cgi?id=2492252
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54297.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.