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CVE-2026-54683

6.5 · MEDIUM

NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations.

Published Oct 15, 2026CWE-285EPSS 0.42%

Overview

CVE-2026-54683 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/nl-portal/nl-portal-backend-libraries/commit/6e738a876ff9f581991b5b070706100b5516e183GitHubgithub.com/nl-portal/nl-portal-backend-libraries/commit/e326e6db862f71f76dd46d3b17cbb5fa6f2fba02GitHubgithub.com/nl-portal/nl-portal-backend-libraries/pull/684GitHubgithub.com/nl-portal/nl-portal-backend-libraries/pull/690GitHubgithub.com/nl-portal/nl-portal-backend-libraries/releases/tag/3.0.3.RELEASEGitHubgithub.com/nl-portal/nl-portal-backend-libraries/security/advisories/GHSA-jr45-52cw-69h5GitHubgithub.com/nl-portal/nl-portal-backend-libraries/security/advisories/GHSA-jr45-52cw-69h5

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54683?

CVE-2026-54683 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-54683?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-54683?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54683?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54683 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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