Vulnerability in Icewhaletech Zimaos
CVE-2026-28442
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Icewhaletech Zimaos — versions = 1.5.2-beta3
- Zimaspace Zimaos — versions 1.5.2
Weakness classification (CWE)
References
- github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-q5hp-59wm-9xq3 (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-28442?
- CVE-2026-28442 is a high-severity vulnerability in Icewhaletech Zimaos, classified under External Control of File Name or Path. CVSS score: 8.5/10. Published 2026-03-05.
- How severe is CVE-2026-28442?
- High severity. CVSS v3 base score is 8.5 out of 10.