Red Hat Product Errata RHSA-2026:51184 - Security Advisory Issued: 2026-08-06 Updated: 2026-08-06 RHSA-2026:51184 - Security Advisory Overview Updated Packages Synopsis Important: glib2 security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for glib2 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (CVE-2026-58016) For 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Fixes BZ - 2492257 - CVE-2026-58016 glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" CVEs CVE-2026-58016 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 SRPM glib2-2.56.4-10.el8_4.6.src.rpm SHA-256: a1615371a00fb5be61be7bcd41592689f1512d02f60d9657ec6ef5c3c9e4cc5b x86_64 glib2-2.56.4-10.el8_4.6.i686.rpm SHA-256: dda820868d811f7a18a0aa47d985d92f69241bd2f95a9b7d50bf23f88523e806 glib2-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 9d70ba7538425fd1a1a6dba92e54c5bd8b20095a3272a84b59e4d08719d52dc2 glib2-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: d4d3889b6fdda516ecacc14104ff6478cd0b4bace37166ae1f8e7294e7ee6597 glib2-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: a50a3284a3aa0644cc0ef3e33750c3409ee7c2a7f053c3202c47099dfff1787c glib2-debugsource-2.56.4-10.el8_4.6.i686.rpm SHA-256: c0715002bba22afda99c24430aee4cc69ab18cd608562a164a1c2f4a3b91dc75 glib2-debugsource-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 35c904153036039bf7cc2556223b1409d1606d0a04e8fa0ec77b28030f6d53b2 glib2-devel-2.56.4-10.el8_4.6.i686.rpm SHA-256: fc3d52a4ff7aa20c6ee40508e4956f36b7691926d886b9fb7f959ab69fbfb304 glib2-devel-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 899442ef3730073bdb97a410086353833e8f32fdad3a675591d55ad0a0a3a318 glib2-devel-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: b9e3868b30476a56a88de7c33303344fd7391139f93fab852ce3d3747303c181 glib2-devel-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 63ef15be83fa852191175721d8bd1252c67772975422665edec505c2e15dd6b8 glib2-fam-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 82b8eb502da358df07eded0365cb3745c6a4af533af39d7dbc671c36d27c0483 glib2-fam-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: 802700b52627b7e33259bae7f4e90aab21b2345b3cec33ff1d43f09f82ff2da3 glib2-fam-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 60323619270344b8f2bb8c8a35a11b90a9ef6cfafc87d2efb5adf104718a535b glib2-tests-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 2be5e5af744528534eb8315a35b53b202152d7dd76274482255ac857757fc84b glib2-tests-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: 3fc47a46cd9bc867ba74e0edd80bcc91edcefc6374ad806c380344fe1e4a379f glib2-tests-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 1058fc55c8f4f51593850150d1ab0e108b61867fea9adc9c1d9b83916ba6ba3c Red Hat Enterprise Linux Server - AUS 8.4 SRPM glib2-2.56.4-10.el8_4.6.src.rpm SHA-256: a1615371a00fb5be61be7bcd41592689f1512d02f60d9657ec6ef5c3c9e4cc5b x86_64 glib2-2.56.4-10.el8_4.6.i686.rpm SHA-256: dda820868d811f7a18a0aa47d985d92f69241bd2f95a9b7d50bf23f88523e806 glib2-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 9d70ba7538425fd1a1a6dba92e54c5bd8b20095a3272a84b59e4d08719d52dc2 glib2-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: d4d3889b6fdda516ecacc14104ff6478cd0b4bace37166ae1f8e7294e7ee6597 glib2-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: a50a3284a3aa0644cc0ef3e33750c3409ee7c2a7f053c3202c47099dfff1787c glib2-debugsource-2.56.4-10.el8_4.6.i686.rpm SHA-256: c0715002bba22afda99c24430aee4cc69ab18cd608562a164a1c2f4a3b91dc75 glib2-debugsource-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 35c904153036039bf7cc2556223b1409d1606d0a04e8fa0ec77b28030f6d53b2 glib2-devel-2.56.4-10.el8_4.6.i686.rpm SHA-256: fc3d52a4ff7aa20c6ee40508e4956f36b7691926d886b9fb7f959ab69fbfb304 glib2-devel-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 899442ef3730073bdb97a410086353833e8f32fdad3a675591d55ad0a0a3a318 glib2-devel-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: b9e3868b30476a56a88de7c33303344fd7391139f93fab852ce3d3747303c181 glib2-devel-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 63ef15be83fa852191175721d8bd1252c67772975422665edec505c2e15dd6b8 glib2-fam-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 82b8eb502da358df07eded0365cb3745c6a4af533af39d7dbc671c36d27c0483 glib2-fam-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: 802700b52627b7e33259bae7f4e90aab21b2345b3cec33ff1d43f09f82ff2da3 glib2-fam-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 60323619270344b8f2bb8c8a35a11b90a9ef6cfafc87d2efb5adf104718a535b glib2-tests-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 2be5e5af744528534eb8315a35b53b202152d7dd76274482255ac857757fc84b glib2-tests-debuginfo-2.56.4-10.el8_4.6.i686.rpm SHA-256: 3fc47a46cd9bc867ba74e0edd80bcc91edcefc6374ad806c380344fe1e4a379f glib2-tests-debuginfo-2.56.4-10.el8_4.6.x86_64.rpm SHA-256: 1058fc55c8f4f51593850150d1ab0e108b61867fea9adc9c1d9b83916ba6ba3c The Red Hat security contact is secalert@redhat.com . 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