CVE-2026-51080 XML external entity in n/a

Critical 9.8 Published Updated

An XML External Entity vulnerability in the Proxmox storage Perl library allows attackers to read sensitive files or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-51080?

CVE-2026-51080 is a critical vulnerability in n/a, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

libpvestorage-perl v9.1.1 and libpve-storage-perl v8.3.7 were discovered to contain an XML External Entity (XXE) vulnerability.

Weakness: CWE-611

Which versions are affected by CVE-2026-51080?

It affects 1 product.

Products include Proxmox Libpve-Storage-Perl.

How do I fix CVE-2026-51080?

No fix has been published for CVE-2026-51080 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-51080 being exploited?

There is no known exploitation of CVE-2026-51080 in the wild and no public exploit code.

Sources

Also known as GHSA-66cj-jqwq-x892.

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