CVE-2026-51082

CVSS Score & Metrics

Base Score

7.2 / 10

Vector String

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

Vulnerability Description

A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call "vncproxy" to hijack a VNC session that is established in parallel by a different user for a different VM.

Vulnerability Details

Published Date

July 17, 2026

Last Modified

July 17, 2026

CWE ID

CWE-362

Source

NVD

External References

https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/post-849971

CVSS Score & Metrics

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Vulnerability Details

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