Red Hat Product Errata RHSA-2026:51181 - Security Advisory Issued: 2026-08-06 Updated: 2026-08-06 RHSA-2026:51181 - 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 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 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 8.6 x86_64 Red Hat Enterprise Linux Server - AUS 8.6 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 8.6 SRPM glib2-2.56.4-158.el8_6.6.src.rpm SHA-256: 4146c99e4ab7c28d8818494cf67a3730c4eae022f6d7ccbf36ef98cdf3f328e4 x86_64 glib2-2.56.4-158.el8_6.6.i686.rpm SHA-256: 615a2e9b5a65862329f67cfec9b3c7d3ccd8fb54ed1134470fc168b0f56774c0 glib2-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: d157a54bb5a416b5bebf9e3aa3279f48a078c23a7fd13ddf083fe7cd45063cc5 glib2-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: f59732d9be0b53408513813cf9b1ea4ecc14dab6f6160256d09e33330989243e glib2-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: af095247d2494f2b2378bc3b5b851a8e08d0eb21946915152a49ef3135a3da88 glib2-debugsource-2.56.4-158.el8_6.6.i686.rpm SHA-256: 12bde8b4f6e06334ba20b7a12a450d236cd1ffdf55fd0a6426bf74398667449f glib2-debugsource-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 2f95eecceccc2bced654da04cf17582f271ee022bdbdd925efc7539c9d83bbeb glib2-devel-2.56.4-158.el8_6.6.i686.rpm SHA-256: 096d81e7dcbe710f858032da19ebc83312b45ff7c5327bbc0c2d716c099946cd glib2-devel-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 076c0851af91b1f65bb262dcc7f7e49bef0b82fa81e923a4077c2d8fb293c87e glib2-devel-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: 8ec3bbb9af0aa70ef468bda16b270aefdeb6b52579e6b46139f1cc542ac765f7 glib2-devel-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 46ba431e276f012116fcd857b830a730c7f7f5dbba2a0f6a72daf17a9287ce79 glib2-fam-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: b6f3d5b40fbc33b324149face522a12dec9e1dcbf5c0cfd066ef8f14f745e40f glib2-fam-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: a0fd7d52956d97b43c1a55de34f5bbea34b0d0efe7845cd56c5a461f3f4f19b5 glib2-fam-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 153e8818a6ce414d29d083820e591e73f4400b54e5674549b0214b55f7aff443 glib2-tests-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 82925fb0122ac85935fc4251995d472cff21b2ad8159b64cd6085e1b45439193 glib2-tests-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: b510e6b2c5d90f5721822cdc81fd15cb8c38e4de4965f07597a317b961aaf765 glib2-tests-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 45de4291b8811b8428e84b365a4dafcd70f47c1a632d123751b61be9d78382cb Red Hat Enterprise Linux Server - AUS 8.6 SRPM glib2-2.56.4-158.el8_6.6.src.rpm SHA-256: 4146c99e4ab7c28d8818494cf67a3730c4eae022f6d7ccbf36ef98cdf3f328e4 x86_64 glib2-2.56.4-158.el8_6.6.i686.rpm SHA-256: 615a2e9b5a65862329f67cfec9b3c7d3ccd8fb54ed1134470fc168b0f56774c0 glib2-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: d157a54bb5a416b5bebf9e3aa3279f48a078c23a7fd13ddf083fe7cd45063cc5 glib2-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: f59732d9be0b53408513813cf9b1ea4ecc14dab6f6160256d09e33330989243e glib2-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: af095247d2494f2b2378bc3b5b851a8e08d0eb21946915152a49ef3135a3da88 glib2-debugsource-2.56.4-158.el8_6.6.i686.rpm SHA-256: 12bde8b4f6e06334ba20b7a12a450d236cd1ffdf55fd0a6426bf74398667449f glib2-debugsource-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 2f95eecceccc2bced654da04cf17582f271ee022bdbdd925efc7539c9d83bbeb glib2-devel-2.56.4-158.el8_6.6.i686.rpm SHA-256: 096d81e7dcbe710f858032da19ebc83312b45ff7c5327bbc0c2d716c099946cd glib2-devel-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 076c0851af91b1f65bb262dcc7f7e49bef0b82fa81e923a4077c2d8fb293c87e glib2-devel-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: 8ec3bbb9af0aa70ef468bda16b270aefdeb6b52579e6b46139f1cc542ac765f7 glib2-devel-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 46ba431e276f012116fcd857b830a730c7f7f5dbba2a0f6a72daf17a9287ce79 glib2-fam-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: b6f3d5b40fbc33b324149face522a12dec9e1dcbf5c0cfd066ef8f14f745e40f glib2-fam-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: a0fd7d52956d97b43c1a55de34f5bbea34b0d0efe7845cd56c5a461f3f4f19b5 glib2-fam-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 153e8818a6ce414d29d083820e591e73f4400b54e5674549b0214b55f7aff443 glib2-tests-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 82925fb0122ac85935fc4251995d472cff21b2ad8159b64cd6085e1b45439193 glib2-tests-debuginfo-2.56.4-158.el8_6.6.i686.rpm SHA-256: b510e6b2c5d90f5721822cdc81fd15cb8c38e4de4965f07597a317b961aaf765 glib2-tests-debuginfo-2.56.4-158.el8_6.6.x86_64.rpm SHA-256: 45de4291b8811b8428e84b365a4dafcd70f47c1a632d123751b61be9d78382cb The Red Hat security contact is secalert@redhat.com . 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