Authorization Bypass Through User-Controlled Key Affecting nl.nl-portal:taak package, versions [1.5.0,3.0.1)
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- published9 Jul 2026
- disclosed8 Jul 2026
- creditUnknown
Introduced: 8 Jul 2026
CVE-2026-49464 (opens in a new tab)How to fix?
Upgrade nl.nl-portal:taak to version 3.0.1 or higher.
Overview
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the submitTaakV2 process. An attacker can access and modify another user's task data, including marking tasks as completed and overwriting submitted information, by submitting requests with a known or guessed task ID while authenticated. This also allows the attacker to view sensitive form data previously entered by the legitimate user.
Workaround
This vulnerability can be mitigated by blocking the submitTaakV2 GraphQL mutation at the API gateway or restricting the /graphql endpoint to trusted networks.