CVE-2026-40304

MEDIUM

5.3

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado4/17/2026

Ultima modificacao4/20/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-284CWE-863

Referencias

https://github.com/openziti/zrok/releases/tag/v2.0.1(security-advisories@github.com)

https://github.com/openziti/zrok/security/advisories/GHSA-3jpj-v3xr-5h6g(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.