---
id: CVE-2026-49463
title: >-
  NL Portal Backend Libraries provide backend components for Dutch government
  portals that interact with residents, customers, suppliers, and partner
  organizations
summary: >-
  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 `n…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
  - CWE-285
vendor: nl-portal
product: 'nl.nl-portal:besluiten'
affected:
  - 'nl.nl-portal:besluiten >= 1.5.0, < 3.0.1'
  - 'nl.nl-portal:documenten-api < 3.0.1'
patched:
  - 'nl.nl-portal:documenten-api 3.0.1'
  - 'nl.nl-portal:besluiten 3.0.1'
published: '2026-09-11'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T19:57:08.043'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49463'
references:
  - url: >-
      https://github.com/nl-portal/nl-portal-backend-libraries/security/advisories/GHSA-qpm9-h556-mwxm
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-qpm9-h556-mwxm'
tags:
  - nvd
  - cve.org
  - ghsa
  - maven
epss: 0.0034
epssPercentile: 0.27351
aliases:
  - GHSA-qpm9-h556-mwxm
ecosystem: maven
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T19:51:06.683901Z'
ingestedAt: '2026-07-08T21:47:02.935Z'
---

## Overview

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 lack per-user authorization in GraphQL resolvers, allowing an authenticated user to access other users’ document contents, decisions, audit trails, and decision attachments. Version 3.0.1 contains a patch. As a workaround, block the affected document-content and decision-related GraphQL operations at the API gateway or block their GraphQL types entirely.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-49463)

Affected packages:

- `nl.nl-portal:documenten-api <= 3.0.0`
- `nl.nl-portal:besluiten >= 1.5.0, <= 3.0.0`

Patched in:

- `nl.nl-portal:documenten-api 3.0.1`
- `nl.nl-portal:besluiten 3.0.1`

Source: https://github.com/advisories/GHSA-qpm9-h556-mwxm