{"schema_version": "1.7.0", "id": "RLSA-2026:74424", "modified": "2026-10-03T12:12:07.022205Z", "published": "2026-10-03T12:04:21.220866Z", "upstream": ["CVE-2026-18917", "CVE-2026-63622"], "summary": "Important: libvirt security, bug fix, and enhancement update", "details": "The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.\n\nSecurity Fix(es):\n\n* libvirt: swtpm privilege escalation via symlink following (CVE-2026-63622)\n\n* libvirt: Integer overflow in NodeGetFreePages RPC handler leading to heap buffer overflow (CVE-2026-18917)\n\nBug Fix(es) and Enhancement(s):\n\n* Live migration fails when virtio-vga becomes available, video device switches from virtio-gpu-pci to virtio-vga on target [rhel-9.8.z] (JIRA:Rocky Linux-186018)\n\n* libvirt-guests does not work together with virtlockd on shutdown [rhel-9.8.z] (JIRA:Rocky Linux-224986)\n\n* Expose guest-get-devices in libvirt-api [rhel-9.8.z] (JIRA:Rocky Linux-243306)\n\n* allow hyperv pvpanic \"device\" to process Windows crash dump [rhel-9.8.z] (JIRA:Rocky Linux-242549)\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:N/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "libvirt", "purl": "pkg:rpm/rocky-linux/libvirt?distro=rocky-linux-9&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:11.10.0-12.7.el9_8"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:74424"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513065"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2520161"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:74424"}], "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-2026:74424"}}