CVE-2026-28798
Last modified
CVE-2026-28798 is a critical-severity vulnerability rated 10/10 on the CVSS scale. ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint (/v1/sys/proxy) exposed by ZimaOS's web interface can be abused (via an externally reachable domain using a Cloudflare Tunnel) to make requests to internal localhost services. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint (/v1/sys/proxy) exposed by ZimaOS's web interface can be abused (via an externally reachable domain using a Cloudflare Tunnel) to make requests to internal localhost services. This results in unauthenticated access to internal-only endpoints and sensitive local services when the product is reachable from the Internet through a Cloudflare Tunnel. This issue has been patched in version 1.5.3.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zimaspace | Zimaos | < 1.5.3 |
References
- https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3Product, Release Notes
- https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8mExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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