Proxmox CVE

Broken privilege checks when modifying container NICs

PSA-2026-00095-1 PVE

Affected packages

pve-container

Details

A bug in the privilege checking code for bridge/VNet access when updating a container's virtual NIC allowed an authenticated attacker that can reconfigure NICs to configure a bridge/VNet that would otherwise be inaccessible.

This issue was reported privately by Yuliang Xiao.

Fixed in

  • pve-container >= 6.1.17

This page reproduces the official Proxmox forum post (opens in a new tab). The original is authoritative.