Subject: PSA-2026-00038-1: TONTOU kernel memory leak via branch predictor re-poisoning
Advisory date: 2026-08-10
Packages: proxmox-kernel-*
Details:
A new technique to leak kernel memory despite spectre v2 mitigations being in place to...
Subject: PSA-2026-00037-1: SCTPhantom Local Privilege Escalation issue
Advisory date: 2026-08-10
Packages: proxmox-kernel-*
Details:
A use-after-free issue in the Linux kernels SCTP code allowed a unprivileged local attacker to obtain root...
Subject: PSA-2026-00036-1: "Zapscape" KVM guest to host escape on x86_64
Advisory date: 2026-08-10
Packages: proxmox-kernel-*
Details:
A use-after-free issue was discovered in the Linux kernel's KVM module's shadow MMU code. On hosts with...
Subject: PSA-2026-00035-1: missing privilege checks for container start-after-create/start-after-rollback
Advisory date: 2026-08-03
Packages: pve-container
Details:
When creating a container or triggering a rollback to a snapshot, the...
Subject: PSA-2026-00034-1: missing validation of comment field in firewall API
Advisory date: 2026-08-03
Packages: pve-firewall, proxmox-firewall
Details:
Missing validation of the comment field in the firewall API allowed an authenticated...
Subject: PSA-2026-00033-1: Authenticated Remote Code Execution via custom_check_path setting
Advisory date: 2026-08-03
Packages: pmg-api
Details:
The custom_check_path setting could be set by any user with 'Administrator' role. This script is...
Subject: PSA-2026-00032-1: "OVSWrap" local privilege escalation issue in OpenVSwitch
Advisory date: 2026-07-29
Packages: proxmox-kernel-*
Details:
Two issues found in the Linux kernel's openvswitch module were discovered which allow leaking...