CVE-2026-51081
Medium
Description
A cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment (PVE) 9.x 5.1.8 and Proxmox Virtual Environment (PVE) 8.x 4.3.16 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload.
SeverityMedium
CVSS6.1
Exploit probability—
ProductVirtual Environment (PVE) 9.x
PublishedJul 17, 2026
First seenJul 17, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Proxmox Virtual Environment (PVE) 9.x5.1.8 or later
- Proxmox Virtual Environment (PVE) 8.x4.3.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Proxmox Virtual Environment (PVE) 9.x | No range specified | 5.1.8 |
| Proxmox Virtual Environment (PVE) 8.x | No range specified | 4.3.16 |
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