Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/ddnexus/pagy/commit/efcf09690e9fa7d7abdfb987b785a55f87e287df
- https://github.com/ddnexus/pagy/pull/908
- https://github.com/ddnexus/pagy/releases/tag/43.5.6
- https://github.com/ddnexus/pagy/security/advisories/GHSA-2xmw-f8j8-wfxc
- https://github.com/ddnexus/pagy/security/advisories/GHSA-2xmw-f8j8-wfxc
FAQ
What is CVE-2026-54659?
CVE-2026-54659 is a documented vulnerability. 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 comp...
How severe is CVE-2026-54659?
CVSS scoring is not yet available for CVE-2026-54659. Check NVD for updates.
Is there a patch for CVE-2026-54659?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.