CVE-2026-28798

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.

CVSS v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3	Product Release Notes
https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:zimaspace:zimaos:*:*:*:*:*:*:*:*

History

13 Apr 2026, 18:27

Type	Values Removed	Values Added
References	~~() https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3 -~~	() https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3 - Product, Release Notes
References	~~() https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m -~~	() https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m - Exploit, Vendor Advisory
First Time		Zimaspace Zimaspace zimaos
CPE		cpe:2.3:o:zimaspace:zimaos::::::::

03 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-03 20:16

Updated : 2026-04-13 18:27

NVD link : CVE-2026-28798

Mitre link : CVE-2026-28798

CVE.ORG link : CVE-2026-28798

JSON object : View

Products Affected

zimaspace

zimaos

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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