{"id":"RLSA-2026:88421","summary":"Important: qemu-kvm security, bug fix, and enhancement update","details":"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.\n\nSecurity Fix(es):\n\n* qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys (CVE-2026-12080)\n\nBug Fix(es) and Enhancement(s):\n\n* 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)\n\n* 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)\n\n* Fix pending QEMU issues for L1VH GA - QEMU [rhel-9.8.z] (JIRA:Rocky Linux-283121)\n\nFor 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.","modified":"2026-10-23T07:15:02.488577730Z","published":"2026-10-23T06:45:29.064378Z","upstream":["CVE-2026-12080"],"database_specific":{"source_advisory":"RHSA-2026:88421","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:88421"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2499603"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:88421"}],"affected":[{"package":{"name":"qemu-kvm","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/qemu-kvm?distro=rocky-linux-9&epoch=7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:10.1.0-17.el9_8.9"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:88421.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}