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CVE-2026-23560 is an authorization flaw in XAPI Role Based Access Control that allows a user with the vm-admin role to set the VM.other-config:is_system_domain property, even though this capability should be restricted to more privileged administrators. By marking an attacker-controlled VM as a system domain, the attacker can cause the VM to be treated as a privileged or special-purpose domain by platform logic. System domains are excluded from certain host and pool lifecycle operations and may be hidden from administrative tooling, creating a privilege-boundary violation in XAPI's handling of VM configuration metadata.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical privilege-escalation vulnerability in XAPI for XCP-ng/Citrix XenServer that enables RBAC bypass and escalation from limited virtualization admin roles to root in dom0.
Privilege/authorization weakness in XAPI RBAC allowing a vm-admin to mark a VM as a system domain, causing it to be ignored during some host or pool operations and potentially hidden from tooling.
An access control flaw in XAPI/XenServer RBAC allowing a vm-admin to mark a VM as a system domain, causing it to be ignored during some host or pool operations and potentially hidden in management tooling.
Privilege/authorization weakness in XAPI RBAC allowing a vm-admin to mark a VM as a system domain, causing it to be ignored during some host or pool operations and potentially hidden from tooling.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.