{"id":"RLSA-2026:64809","summary":"Moderate: expat security update","details":"Expat is a C library for parsing XML documents.\n\nSecurity Fix(es):\n\n* expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking (CVE-2026-50219)\n\n* expat: libexpat: Arbitrary Code Execution via Heap-based Buffer Overflow (CVE-2026-56132)\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":"2026-09-09T06:30:16.352061524Z","published":"2026-09-09T06:01:04.826697Z","upstream":["CVE-2026-50219","CVE-2026-56132"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:64809"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:64809"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2484620"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2490669"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:64809"}],"affected":[{"package":{"name":"expat","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/expat?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.5.0-2.el8_10.2"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:64809.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}