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7.3
Rocky Linux qemu-kvm allows local privilege escalation
published 12 days ago
Summary
The qemu-kvm component used for virtual machines on Rocky Linux can let a malicious user on the same host gain higher system privileges by exploiting a shortcut file trick. This could let an attacker run programs with the same rights as the host administrator. Install the latest Rocky Linux qemu-kvm update to close the gap and apply the other listed fixes.
What to do
- Update rocky qemu-kvm to version 7:10.1.0-17.el9_8.9.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Rocky Linux:9 | rocky | qemu-kvm |
< 7:10.1.0-17.el9_8.9 Fix: upgrade to 7:10.1.0-17.el9_8.9
|
Original advisory text
Important: qemu-kvm security, bug fix, and enhancement update
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
Security Fix(es):
* qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys (CVE-2026-12080)
Bug Fix(es) and Enhancement(s):
* qemu-img can't create a qcow2 overlay with 'data_file' feature on top of a file without destroying the original image [rhel-9.8.z] (JIRA:Rocky Linux-164549)
* live migration of a VM with a scsi3pr to a node that previously held a reservation on that disk fails. [rhel-9.8.z] (JIRA:Rocky Linux-280223)
* Fix pending QEMU issues for L1VH GA - QEMU [rhel-9.8.z] (JIRA:Rocky Linux-283121)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Security Fix(es):
* qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys (CVE-2026-12080)
Bug Fix(es) and Enhancement(s):
* qemu-img can't create a qcow2 overlay with 'data_file' feature on top of a file without destroying the original image [rhel-9.8.z] (JIRA:Rocky Linux-164549)
* live migration of a VM with a scsi3pr to a node that previously held a reservation on that disk fails. [rhel-9.8.z] (JIRA:Rocky Linux-280223)
* Fix pending QEMU issues for L1VH GA - QEMU [rhel-9.8.z] (JIRA:Rocky Linux-283121)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
- https://errata.rockylinux.org/RLSA-2026:88421 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2499603 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:88421 Vendor Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Timeline
Published23 Oct 2026
Updated23 Oct 2026
First seen23 Oct 2026
Sources
RLSA-2026:88421 · OSV
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