{"schema_version": "1.7.0", "id": "RLSA-2026:98582", "modified": "2026-11-13T12:07:21.424369Z", "published": "2026-11-13T12:06:37.188502Z", "upstream": ["CVE-2026-102633", "CVE-2026-66046", "CVE-2026-77214", "CVE-2026-93990"], "summary": "Important: expat security update", "details": "Expat is a C library for parsing XML documents.\n\nSecurity Fix(es):\n\n* expat: Expat: Denial of Service via quadratic complexity in attribute processing (CVE-2026-66046)\n\n* expat: Expat: XML Injection via Malformed UTF-16 Input (CVE-2026-93990)\n\n* expat: expat: Denial of Service via integer overflow in expat_realloc (CVE-2026-102633)\n\n* expat: expat: Information disclosure via heap buffer over-read in XML_ParseBuffer (CVE-2026-77214)\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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debugsource", "purl": "pkg:rpm/rocky-linux/expat-debugsource?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-devel", "purl": "pkg:rpm/rocky-linux/expat-devel?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "AppStream"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debuginfo", "purl": "pkg:rpm/rocky-linux/expat-debuginfo?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky 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"ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debugsource", "purl": "pkg:rpm/rocky-linux/expat-debugsource?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debuginfo", "purl": "pkg:rpm/rocky-linux/expat-debuginfo?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-devel", "purl": "pkg:rpm/rocky-linux/expat-devel?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "AppStream"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debugsource", "purl": "pkg:rpm/rocky-linux/expat-debugsource?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat", "purl": "pkg:rpm/rocky-linux/expat?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debugsource", "purl": "pkg:rpm/rocky-linux/expat-debugsource?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-debuginfo", "purl": "pkg:rpm/rocky-linux/expat-debuginfo?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat-devel", "purl": "pkg:rpm/rocky-linux/expat-devel?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "AppStream"}}]}, {"package": {"ecosystem": "Rocky Linux:10", "name": "expat", "purl": "pkg:rpm/rocky-linux/expat?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.7.3-2.el10_3.4"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:98582"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517901"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543288"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547476"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538967"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:98582"}], "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-2026:98582"}}