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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-57579

Alchemy: Unauthenticated nested page API leaks restricted & unpublished content

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Alchemy is an open source content management system engine written in Ruby on Rails. Prior to 7.4.15, 8.0.15, 8.1.14, and 8.2.6, the unauthenticated GET /api/pages/nested endpoint implemented by Api::PagesController#nested in app/controllers/alchemy/api/pages_controller.rb returns an unfiltered page tree because it performs no authorization and does not scope descendants by the caller's ability. Anonymous callers can retrieve restricted and unpublished page metadata that the sibling show action denies. When elements=true is supplied, PageTreeSerializer also returns element and ingredient content from restricted pages because PageTreePreloader and the serializer do not apply an ability check to those records. This issue is fixed in versions 7.4.15, 8.0.15, 8.1.14, and 8.2.6.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AlchemyCMS alchemy_cms

  • < 7.4.15affected
  • >= 8.0.0, < 8.0.15affected
  • >= 8.1.0, < 8.1.14affected
  • >= 8.2.0, < 8.2.6affected

References