cvedb.io
CVE-2026-40304
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-04-17T22:16:32.230 · Last modified 2026-06-17T10:44:58.387

Summary

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the unaccess handler (controller/unaccess.go) contains a logical error in its ownership guard: when a frontend record has environment_id = NULL (the marker for admin-created global frontends), the condition short-circuits to false and allows the deletion to proceed without any ownership verification. A non-admin user who knows a global frontend token can call DELETE /api/v2/unaccess with any of their own environment IDs and permanently delete the global frontend, taking down all public shares routed through it. Version 2.0.1 patches the issue.

Affected products

netfoundry — zrok

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.