CVE-2026-110111

7.5High

Published 13 Oct 2026 · NVD status: Awaiting Analysis

7.5High

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-1321

The AI triage for this one isn't ready yet. Check back in a few minutes; the full NVD record is below in the meantime.

CVSS v3.1 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Ad · In-content banner

NVD description

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.

References

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

Source: nvd.nist.gov/vuln/detail/CVE-2026-110111