Proxmox CVE

missing parameter validation in remote migration

PSA-2026-00039-1 PVE

Affected packages

qemu-server

Details

Missing parameter validation in Proxmox VE's remote migration code allowed an attacker with Sys.Incoming privileges to inject arbitrary values in parts of the QEMU command line on the migration target.

This issue was privately reported by Geoffrey McClinsey <[email protected]>.

Fixed in

  • qemu-server >= 9.2.3 (PVE 9.x)
  • qemu-server >= 8.4.9 (PVE 8.x)

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