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.
History

Mon, 02 Mar 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Title ZimaOS: Unauthorized Creation of Files/Folders in Restricted System Directories via API
Weaknesses CWE-73
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-02T16:28:39.365Z

Reserved: 2026-02-26T01:52:58.735Z

Link: CVE-2026-28286

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-02T17:16:33.610

Modified: 2026-03-02T17:16:33.610

Link: CVE-2026-28286

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.