{"id":"RLSA-2026:18748","summary":"Moderate: libvirt security update","details":"Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems.\n\nSecurity Fix(es):\n\n* libvirt: Denial of service in XML parsing (CVE-2025-12748)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 9 Release Notes linked from the References section.","modified":"2026-05-28T16:00:23.937076248Z","published":"2026-05-28T15:43:06.024531Z","upstream":["CVE-2025-12748"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:18748"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2413801"}],"affected":[{"package":{"name":"libvirt","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/libvirt?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:11.10.0-12.el9"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:18748.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}