{"id":"RLSA-2026:67873","summary":"Important: corosync security update","details":"The corosync packages provide the Corosync Cluster Engine and C APIs for Rocky Linux cluster software.\n\nSecurity Fix(es):\n\n* corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly (CVE-2026-81665)\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":"2026-09-17T06:30:02.474762001Z","published":"2026-09-17T06:06:39.358579Z","upstream":["CVE-2026-81665"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:67873"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:67873"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524910"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67873"}],"affected":[{"package":{"name":"corosync","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/corosync?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.1.10-1.el9_8.2"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:67873.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}