{"schema_version": "1.7.0", "id": "RLSA-2026:88421", "modified": "2026-10-23T06:53:25.831493Z", "published": "2026-10-23T06:45:29.064378Z", "upstream": ["CVE-2026-12080"], "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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "qemu-kvm", "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"}}]}], "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"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:88421"}}