{"id":"CVE-2026-40304","revision":"af1af85ee5cd4328ae996c2cb81a0e88","records":[{"revision":"af1af85ee5cd4328ae996c2cb81a0e88","observedAt":"2026-10-27T10:09:56.341+00:00","statement":{"source":"nvd","id":"CVE-2026-40304","aliases":[],"title":"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…","description":"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.","state":0,"publishedAt":"2026-04-17T22:16:32.23+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/openziti/zrok/releases/tag/v2.0.1","https://github.com/openziti/zrok/security/advisories/GHSA-3jpj-v3xr-5h6g"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40304","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-284","CWE-863"],"productCriteria":["cpe:2.3:a:netfoundry:zrok:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-04-17T22:16:32.230","lastModified":"2026-10-26T22:10:00.163"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-40304","identifiers":["CVE-2026-40304"]},"retained":false,"historicalAffected":[]}],"coverage":[]}