{"schema_version": "1.7.0", "id": "RLSA-2026:64812", "modified": "2026-09-09T12:12:57.133704Z", "published": "2026-09-09T12:05:17.368443Z", "upstream": ["CVE-2026-50219", "CVE-2026-56132"], "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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "expat", "purl": "pkg:rpm/rocky-linux/expat?distro=rocky-linux-9&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.5.0-6.el9_8.3"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:64812"}, {"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-2026:64812"}], "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-2026:64812"}}