CVE-2026-54659: Ddnexus Pagy

Medium severity, CVSS 6.9. EPSS: 0.5% chance of exploitation in the next 30 days.

Pagy is agnostic pagination in plain Ruby. From 43.0.0 until 43.5.6, Pagy::I18n.locale= in gem/lib/pagy/modules/i18n/i18n.rb stored locale values verbatim and later used them as <locale>.yml path components, allowing untrusted params[:locale] values with absolute paths or ../ sequences to create a file existence and readability oracle for YAML files. This issue is fixed in version 43.5.6.

Affected products

• Ddnexus Pagy: from 43.0.0, before 43.5.6 (fixed in 43.5.6)

Published 2026-07-28. Last modified 2026-07-30.