[ CVE-2026-54683 · Published 15 Oct 2026 ]
Vulnerability in nl-portal-backend-libraries
[ Description ]Official description
NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. Prior to 3.0.3, both the getDocumentContent GraphQL query and GET /api/documentapi/{documentapi}/document/{documentId}/content REST route allow any authenticated portal user to retrieve a document without checking ownership of or another authorized relationship to it. A user with a valid login and another person's document identifier can read that document's contents, which may include sensitive personal information. Document identifiers are random and difficult to guess, but they can leak through other channels. This issue is fixed in version 3.0.3.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/nl-portal/nl-portal-backend-libraries/commit/6e738a876ff9f581991b5b070706100…
- github.com/nl-portal/nl-portal-backend-libraries/commit/e326e6db862f71f76dd46d3b17cbb5f…
- github.com/nl-portal/nl-portal-backend-libraries/pull/684
- github.com/nl-portal/nl-portal-backend-libraries/pull/690
- github.com/nl-portal/nl-portal-backend-libraries/releases/tag/3.0.3.RELEASE
- github.com/nl-portal/nl-portal-backend-libraries/security/advisories/GHSA-jr45-52cw-69h5