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CVE-2026-49463 is an improper authorization flaw in NL Portal Backend Libraries affecting document access controls in the documenten-api and related GraphQL resolvers. According to the provided advisories, authenticated users could access document content and, in related GraphQL functionality, enumerate and read other users' decision records, audit trails, and attached documents because per-document or per-user authorization checks were missing or incomplete. One advisory states that an incomplete fix left a REST endpoint and GraphQL query able to return document contents without verifying that the caller was authorized for the specific document. Another states that the GraphQL implementation failed to bind authenticated user context correctly in the resolver, allowing cross-user access to protected data.
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