CVE-2026-49464

The nl.nl-portal:taak package in NL Portal Backend Libraries (Dutch government portals) has an insecure direct object reference (IDOR) in the submitTaakV2 GraphQL mutation. Versions 1.5.0 through 3.0.0 fail to verify task ownership: the resolver fetches a task by UUID and transitions it to comple...

CVE-2026-49462

NL Portal Backend Libraries (used in Dutch government portals) ships a default configuration in versions up to and including 3.0.0 that exposes two GraphQL developer features without requiring authentication: the GraphiQL playground at the /graphiql endpoint and schema introspection . Together, t...

CVE-2026-49463 NL Portal: Missing per-user authorization on document and decision GraphQL queries in nl-portal-backend-libraries

NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. The nl.nl-portal:documenten-api package through version 3.0.0 and the nl.nl-portal:besluiten package from version 1.5.0 through 3.0.0...

EUVD-2026-76244

NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. The nl.nl-portal:documenten-api package through version 3.0.0 and the nl.nl-portal:besluiten package from version 1.5.0 through 3.0.0...

CVE-2026-49463

NL Portal Backend Libraries (Dutch government portal backend) contained a missing per-user authorization in two GraphQL resolver areas. The nl.nl-portal:documenten-api package (all versions up to 3.0.0) and nl.nl-portal:besluiten package (1.5.0–3.0.0) both declared resolvers without an authentica...

GHSA-6H3C-R723-7FX3 NL Portal: IDOR allows any authenticated user to complete and tamper with another user's taak

Impact In versions from 1.5.0 up to and including 3.0.0, any authenticated portal user could complete and tamper with another user's open task by submitting it on their behalf. The task submission endpoint accepted a task ID and a payload, but it never checked whether the task actually belonged t...

NL Portal: Missing per-user authorization on document and decision GraphQL queries in nl-portal-backend-libraries

Impact In versions up to and including 3.0.0, two parts of the GraphQL API returned data without checking whether the data belonged to the logged-in user: - Document content. A logged-in user could download the raw content of any document by its ID, regardless of who owned it. The resolver has...

NL Portal Backend Libraries: Document contents remained downloadable by any logged-in user (incomplete fix of CVE-2026-49463)

Summary A previous advisory CVE-2026-49463 / GHSA-qpm9-h556-mwxm reported that any logged-in user could download any document by its identifier, and stated this was fixed in 3.0.1. For the document-content part that fix was incomplete: documents remained downloadable by any authenticated user in...