PT-2026-51060 · Rubygems · Faraday

Published 2026-06-19 · Updated 2026-06-19 · CVE-2026-54297

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Faraday versions prior to 2.14.2-2-g59334e0

Description Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder, decodes nested query strings without enforcing a maximum nesting depth. An attacker can provide a crafted query string with deeply nested parameters, causing the internal dehash() function to recursively process the structure without a limit. This leads to stack exhaustion, triggering a SystemStackError (stack level too deep) that crashes the calling Ruby thread or worker, resulting in a denial of service. This issue occurs when applications pass untrusted query strings to Faraday::Utils.parse nested query() or during URL construction via the build url() method.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-54297

GHSA-98M9-HRRM-R99R

Affected Products

Faraday

References · 4

• https://osv.dev/vulnerability/GHSA-98m9-hrrm-r99r · Vendor Advisory
• https://github.com/lostisland/faraday · Note
• https://github.com/lostisland/faraday/security/advisories/GHSA-98m9-hrrm-r99r · Note
• https://twitter.com/dailycve/status/2068099721357377707 · Twitter Post