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

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

• CVE-2026-54683: 0.42% estimated exploitation activity in the next 30 days; percentile 36.63 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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 3.0.1 and 3.0.2, and the issue was only fully resolved in 3.0.3. Relationship to CVE-2026-49463 This advisory is a follow-up to CVE-2026-49463. That advisory described the problem on the GraphQL getDocumentContent query and listed nl.nl-portal:documenten-api as fixed in 3.0.1. In practice: - The 3.0.1 change added an authentication parameter to the GraphQL query but never used it, so the query kept returning any document regardless of ownership. - The same flaw also existed on a REST endpoint that the original advisory did not cover, and that endpoint was not changed in 3.0.1 or 3.0.2. Both were removed in 3.0.3, which is the first release where the document-content issue is actually fixed.…

Published by the source

18 Jun 2026, 17:20 UTC

Last modified by the source

18 Jun 2026, 17:20 UTC

Source last checked

26 Oct 2026, 16:53 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-jr45-52cw-69h5

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# Patch Next advisory brief: CVE-2026-54683

Advisory: NL Portal Backend Libraries: Document contents remained downloadable by any logged-in user (incomplete fix of CVE-2026-49463)
IDs: CVE-2026-54683, GHSA-jr45-52cw-69h5
Record: https://patchnext.com/advisories/cve-2026-54683 (revision 1, source checked 26 Oct 2026, 16:53 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: nl.nl-portal:documenten-api 3.0.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven nl.nl-portal:documenten-api: affected < 3.0.3; fixed in 3.0.3

## Suggested inspection (read-only)
- Maven nl.nl-portal:documenten-api: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on nl.nl-portal:documenten-api.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-jr45-52cw-69h5 (GitHub-reviewed advisory GHSA-jr45-52cw-69h5 lists affected ranges: Maven nl.nl-portal:documenten-api >=0 <3.0.3)

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