Critical severity · published Jul 17, 2026
CVE-2026-51080
libpvestorage-perl v9.1.1 and libpve-storage-perl v8.3.7 were discovered to contain an XML External Entity (XXE) vulnerability
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
libpvestorage-perl v9.1.1 and libpve-storage-perl v8.3.7 were discovered to contain an XML External Entity (XXE) vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libpve-storage-perl · Proxmox
8.3.7; 9.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-51080
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-51080
Issue Tracking
https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/post-849970
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