Vendure is an open-source headless commerce platform. Prior to 3.6.5, the public Shop API products, collections, and facets queries combine mandatory visibility guards with caller-supplied filters using the caller-controlled filterOperator. When filterOperator is OR, a predicate matching a hidden entity can bypass the Product.enabled, Collection.isPrivate, or Facet.isPrivate guard. An unauthenticated caller can therefore retrieve disabled products and private collections or facets. This issue is fixed in version 3.6.5.