CVE-2026-110111

Xen Orchestra before 6.9.0 contains an improper access control vulnerability that allows any authenticated user to become global administrator by abusing the unprotected vm.importFromEsxi and vm.importMultipleFromEsxi methods. Attackers can point xo-server at a malicious ESXi host serving a crafted .vmx file with __proto__.permission set, polluting Object.prototype so permission-less accounts inherit admin rights and enabling remote code execution.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vatesfr/xen-orchestra/security/advisories/GHSA-mc4m-hc98-rhmv
https://www.vulncheck.com/advisories/xen-orchestra-before-6.9.0-privilege-escalation-via-prototype-pollution-in-vm-importfromesxi

Configurations

No configuration.

History

13 Oct 2026, 19:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 19:18

Updated : 2026-10-26 19:16

NVD link : CVE-2026-110111

Mitre link : CVE-2026-110111

CVE.ORG link : CVE-2026-110111

JSON object : View

Products Affected

No product.

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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