CVE-2026-54683NL Portal Backend Libraries: Document contents remained downloadable by any logged-in user until 3.0.3 (incomplete fix of CVE-2026-49463)
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-285, CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
nl-portal nl-portal-backend-libraries nl_portal:backend_libraries (from the name) | before 3.0.3 | CNA record |
References
- https://github.com/nl-portal/nl-portal-backend-libraries/security/advisories/GHSA-jr45-52cw-69h5x-refsource-confirm
- https://github.com/nl-portal/nl-portal-backend-libraries/pull/684x-refsource-misc
- https://github.com/nl-portal/nl-portal-backend-libraries/pull/690x-refsource-misc
- https://github.com/nl-portal/nl-portal-backend-libraries/commit/6e738a876ff9f581991b5b070706100b5516e183x-refsource-misc
- https://github.com/nl-portal/nl-portal-backend-libraries/commit/e326e6db862f71f76dd46d3b17cbb5fa6f2fba02x-refsource-misc
- https://github.com/nl-portal/nl-portal-backend-libraries/releases/tag/3.0.3.RELEASEx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.