CVE-2026-28798 - Vulnerability Analysis
CriticalCVSS: 9.0Last Updated: April 3, 2026
ZimaOS - Authentication Bypass
Published: April 3, 2026Updated: April 3, 2026Remote Exploitable
Overview
ZimaOS < 1.5.3 contains an authentication bypass caused by proxy endpoint /v1/sys/proxy allowing unauthenticated access to internal localhost services via Cloudflare Tunnel, letting remote attackers access sensitive internal endpoints, exploit requires product exposure through Cloudflare Tunnel.
Severity & Score
Severity: Critical
CVSS Score: 9.0
Impact
Remote attackers can access sensitive internal services without authentication, potentially leading to information disclosure or further compromise.
Mitigation
Update to version 1.5.3 or later.
References
Related Resources
Details
- CVE ID
- CVE-2026-28798
- Severity
- Critical
- CVSS Score
- 9.0
- Type
- broken_authentication
- Status
- new
CWE
- CWE-918
CVSS Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H