Incorrect authorization in LoadMaster - CVE-2026-59689

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Main Vulnerability Database Vulnerabilities #VU139983

Incorrect authorization in LoadMaster - CVE-2026-59689

Published: July 27, 2026 / Updated: July 29, 2026


Vulnerability identifier: #VU139983
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-59689
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability: No public exploit available
Affected software:
LoadMaster

Detailed vulnerability description

The vulnerability allows a remote user to escalate privileges to root.

The vulnerability exists due to incorrect authorization in the appliance authorization mechanism when processing authenticated operations. A remote user can perform crafted actions to escalate privileges to root.


How to mitigate CVE-2026-59689

Install security update from vendor's website.

Sources