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Description

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.5.2-beta3, the application enforces restrictions in the frontend/UI to prevent users from creating files or folders in internal OS paths. However, when interacting directly with the API, the restrictions are bypass-able. By sending a crafted request targeting paths like /etc, /usr, or other sensitive system directories, the API successfully creates files or directories in locations where normal users should have no write access. This indicates that the API does not properly validate the target path, allowing unauthorized operations on critical system directories. No known patch is publicly available.

PUBLISHED Reserved 2026-02-26 | Published 2026-03-02 | Updated 2026-03-03 | Assigner GitHub_M




HIGH: 8.6CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-73: External Control of File Name or Path

Product status

= 1.5.2-beta3
affected

References

github.com/...ZimaOS/security/advisories/GHSA-65mg-9gw5-vr7g

cve.org (CVE-2026-28286)

nvd.nist.gov (CVE-2026-28286)

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