PSA-2026-00072: Proxmox Virtual Environment: Missing buffer limits when processing Qemu guest agent responses
This Proxmox advisory covers a security issue in Proxmox Virtual Environment.
Key facts
- Fixed in
- qemu-server 9.2.11
- Advisory id
- PSA-2026-00072
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
An attacker with access to a VM with configured guest agent can consume excessive memory usage on the host side during QGA response processing. This issue was reported privately by Project Loupe.
Packages: qemu-server.
Affected product named by the advisory: Proxmox Virtual Environment.
Text from the source record.
Fix and mitigation
Upgrade to a fixed release named by Proxmox:
- qemu-server 9.2.11
Vendor guidance
- Update to the fixed package versions: qemu-server >= 9.2.11.
End-of-life dates for Proxmox VE
More Proxmox advisories
PSA-2026-00095Nov 10, 2026Proxmox Virtual Environment: Broken privilege checks when modifying container NICsPSA-2026-00094Nov 10, 2026Proxmox Virtual Environment: OCI extraction path escapePSA-2026-00093Nov 10, 2026Proxmox Virtual Environment: FRR config injection issuesPSA-2026-00092Nov 10, 2026Proxmox Virtual Environment: Missing and incomplete ACL checks in the SDN APIPSA-2026-00089Nov 10, 2026Proxmox: Several issues in libpve-http-server-perlPSA-2026-00088Nov 10, 2026Proxmox Virtual Environment: Shell command injection via volume name
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