Improper access control in XenAPI Server - CVE-2026-23562

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Main Vulnerability Database Vulnerabilities #VU128449

Improper access control in XenAPI Server - CVE-2026-23562

Published: April 29, 2026


Vulnerability identifier: #VU128449
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23562
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
XenAPI Server
Software vendor:
Xen Project

Description

The vulnerability allows a remote user to access unintended host hardware.

The vulnerability exists due to improper access control in a PCI passthrough API when configuring PCI passthrough. A remote user can invoke the API without the intended pool-admin restriction to access unintended host hardware.

The vulnerability is exposed only when RBAC is configured for the pool.


Remediation

Install security update from vendor's website.

External links