Red Hat Product Errata RHSA-2026:42089 - Security Advisory Issued: 2026-07-20 Updated: 2026-07-20 RHSA-2026:42089 - 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 9. 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 9 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 x86_64 Red Hat Enterprise Linux for IBM z Systems 9 s390x Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8 s390x Red Hat Enterprise Linux for Power, little endian 9 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 ppc64le Red Hat Enterprise Linux for ARM 64 9 aarch64 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8 aarch64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 x86_64 Red Hat CodeReady Linux Builder for x86_64 9 x86_64 Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le Red Hat CodeReady Linux Builder for ARM 64 9 aarch64 Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.8 x86_64 Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.8 ppc64le Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.8 s390x Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.8 aarch64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8 s390x 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 9 SRPM glib2-2.68.4-19.el9_8.2.src.rpm SHA-256: a83765b29b33baa64cc4b9e043b3d4f068b94864649dd52d9b2e412fbad7e1ca x86_64 glib2-2.68.4-19.el9_8.2.i686.rpm SHA-256: eee05017ebe8f006fa895741cca4f6fba288672edcf5ba52fd44576d6f27989d glib2-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 76e98d78411436867d135586f409655e0adf9711820860b2d1c809b9e20ae678 glib2-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: a144701837ca578fe1fd60511c7c4c32dbf012a0ee0194fb8f7876846d120d96 glib2-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: a144701837ca578fe1fd60511c7c4c32dbf012a0ee0194fb8f7876846d120d96 glib2-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 4b0465a65234c68c35e84fcfee8874a697bcdfab550545b43bdaf5f61dae049a glib2-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 4b0465a65234c68c35e84fcfee8874a697bcdfab550545b43bdaf5f61dae049a glib2-debugsource-2.68.4-19.el9_8.2.i686.rpm SHA-256: dc19222d02635b4761f6b5f4fda88d2f10e83a36e947b0df2cf0edf9e47635d6 glib2-debugsource-2.68.4-19.el9_8.2.i686.rpm SHA-256: dc19222d02635b4761f6b5f4fda88d2f10e83a36e947b0df2cf0edf9e47635d6 glib2-debugsource-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 11782097095e083f253d54fd7c2be38fa4ba2df3bb9052a73307ad25c3be9f56 glib2-debugsource-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 11782097095e083f253d54fd7c2be38fa4ba2df3bb9052a73307ad25c3be9f56 glib2-devel-2.68.4-19.el9_8.2.i686.rpm SHA-256: 0419c014d43d80f87dae4786429027f5ad59a3474675f4b1cc975eaf45a91c8f glib2-devel-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: 1df5d114b97361cb65eaee75516c68fa8692281b7a34caec1da12219aaae9a1e glib2-devel-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: f4d36321819020d5c7c27f8317c9cac8d6d9963300ecadab6b249bea28f692e2 glib2-devel-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: f4d36321819020d5c7c27f8317c9cac8d6d9963300ecadab6b249bea28f692e2 glib2-devel-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: eeefcd90534b24c274f63af82828993ccdb9c7612137c3494d5c817e03df1caa glib2-devel-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: eeefcd90534b24c274f63af82828993ccdb9c7612137c3494d5c817e03df1caa glib2-doc-2.68.4-19.el9_8.2.noarch.rpm SHA-256: 629feda390beca75bdf96f3fceb6ef2e2e43d65082e9c3787c5a28939ac50fed glib2-tests-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: da136d2460dea6a428b934fc1b463ef27540cf8cee3731cd2a96284e980dc4ca glib2-tests-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: d8fe48c483e0e667ae57adbdb6784124c729134bac7823801f74da458e44e75e glib2-tests-debuginfo-2.68.4-19.el9_8.2.i686.rpm SHA-256: d8fe48c483e0e667ae57adbdb6784124c729134bac7823801f74da458e44e75e glib2-tests-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: f38f0349169de101d9e3bbdde15d6c4bb790ed21e8c44705584362c701195e87 glib2-tests-debuginfo-2.68.4-19.el9_8.2.x86_64.rpm SHA-256: f38f0349169de101d9e3bbdde15d6c4bb790ed21e8c44705584362c701195e87 Red Hat Enterprise Linux for x86_64 - 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