Apollo Router Core is a configurable Rust graph router written to run a federated supergraph using Apollo Federation 2. Versions 1.61.12-rc.0 and below and 2.8.1-rc.0 allow unauthorized access to protected data through schema elements with access control directives (@authenticated, @requiresScopes, and @policy) that were renamed via @link imports. Router did not enforce renamed access control directives on schema elements (e.g. fields and types), allowing queries to bypass those element-level access controls. This issue is fixed in versions 1.61.12 and 2.8.1.
Affected: crates.io: apollo-router
# Summary A vulnerability in Apollo Router allowed for unauthorized access to protected data through schema elements with access control directives (`@authenticated`, `@requiresScopes`, and `@policy`) that were renamed via `@link` imports. Router did not enforce renamed access control directives on schema elements (e.g. fields and types), allowing queries to bypass those element-level access controls.
## Details
Apollo Federation allows users to specify access control directives (`@authenticated`, `@requiresScopes`, and `@policy`](https://www.apollographql.com/docs/graphos/routing/security/authorization#authorization-directives)) to protect schema data access at the element level. These directives can optionally be renamed via the [`imports` argument to the `@link` directive](https://www.apollographql.com/docs/graphos/schema-design/federated-schemas/reference/directives#renaming-directives), which can be useful if their default names match an existing user-defined directive in their subgraph schema. However, Apollo Router's access control logic ignored the `imports` argument, and would accordingly ignore access control directives that were renamed in this way.
## Who Is Impacted
This vulnerability impacts Apollo Router customers defining `@authenticated`, `@requiresScopes`, or `@policy` directives on schema elements that were renamed via `@link` imports are impacted.
### Scope of Impact
The vulnerability could allow a malicious actor to craft a query that can bypass a…