XML External Entity Vulnerability in Proxmox Virtual Environment by Proxmox
CVE-2026-51080

9.8CRITICAL

Key Information:

Vendor

Proxmox

Status
Proxmox Virtual Environment
Vendor
CVE Published:
17 July 2026

What is CVE-2026-51080?

An XML External Entity (XXE) vulnerability has been detected in specific versions of libpvestorage-perl and libpve-storage-perl, which could potentially allow an attacker to interact with and access internal resources via crafted XML data. It is crucial for users to update to the latest versions to mitigate the risks associated with this vulnerability.

References

https://forum.proxmox.com/threads/proxmox-virtual-environ...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.