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CVE-2026-28286— ZimaOS: Unauthorized Creation of Files/Folders in Restricted System Directories via API

Quick assessment

Affected
IceWhaleTech ZimaOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZimaOS是IceWhaleTech的一个开源的操作系统项目，旨在提供一个轻量级、高性能、安全的操作系统环境。 ZimaOS 1.5.2-beta3版本存在安全漏洞，该漏洞源于API未正确验证目标路径，可能导致在敏感系统目录中创建文件或目录。

CVSS 8.6 · High EPSS 0.61% · P48
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I. Basic Information for CVE-2026-28286

Vulnerability Information
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Vulnerability Title
ZimaOS: Unauthorized Creation of Files/Folders in Restricted System Directories via API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
ZimaOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZimaOS是IceWhaleTech的一个开源的操作系统项目，旨在提供一个轻量级、高性能、安全的操作系统环境。 ZimaOS 1.5.2-beta3版本存在安全漏洞，该漏洞源于API未正确验证目标路径，可能导致在敏感系统目录中创建文件或目录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IceWhaleTech ZimaOS = 1.5.2-beta3 -

II. Public POCs for CVE-2026-28286

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III. Intelligence Information for CVE-2026-28286

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Vendor Advisories for CVE-2026-28286 (1)

IV. Related Vulnerabilities

Same product: ZimaOS
Same vendor: IceWhaleTech
Same weakness: CWE-73

V. Comments for CVE-2026-28286

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