CVE-2026-28442 ZimaOS: Arbitrary Deletion of Internal System Files via API Path Manipulation
Attackers can delete internal system files in ZimaOS by manipulating API path parameters, bypassing interface restrictions and causing data loss or system instability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28442?
CVE-2026-28442 is a high-severity path traversal vulnerability in IceWhaleTech ZimaOS, published on 5 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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, users are restricted from deleting internal system files or folders through the application interface. However, when interacting directly with the API, these restrictions can be bypassed. By altering the path parameter in the delete request, internal OS files and directories can be removed successfully. The backend processes these manipulated requests without validating whether the targeted path belongs to restricted system locations. This demonstrates improper input validation and broken access control on sensitive filesystem operations. No known public patch is available.
Weakness: CWE-73
Which versions are affected by CVE-2026-28442?
It affects 1 product.
Products include Zimaspace Zimaos.
How do I fix CVE-2026-28442?
No fix has been published for CVE-2026-28442 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-28442 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28442 exists.
Other vulnerabilities in IceWhaleTech ZimaOS
- CVE-2026-21891 ZimaOS has Authentication Bypass via System-Level Username
- CVE-2026-28798 Arbitrary internal service access via /v1/sys/proxy when Cloudflare Tunnel is enabled on ZimaOS
- CVE-2026-28286 ZimaOS: Unauthorized Creation of Files/Folders in Restricted System Directories via API
- CVE-2024-48931 ZimaOS Arbitrary File Read via Parameter Manipulation
- CVE-2024-49357 ZimaOS (Installed Applications and System Information) has Unauthorized Sensitive Data Leak
Sources
Also known as GHSA-q5hp-59wm-9xq3.