Red Hat Product Errata RHSA-2026:19566 - Security Advisory Issued: 2026-05-20 Updated: 2026-05-20 RHSA-2026:19566 - Security Advisory Overview Updated Packages Synopsis Moderate: glib2 security update Type/Severity Security Advisory: Moderate 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 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Moderate. 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: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) 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 Server - Extended Life Cycle Support 7 x86_64 Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64 Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le Fixes BZ - 2419093 - CVE-2025-14087 glib: GLib: Buffer underflow in GVariant parser leads to heap corruption CVEs CVE-2025-14087 References https://access.redhat.com/security/updates/classification/#moderate Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 SRPM glib2-2.56.1-12.el7_9.src.rpm SHA-256: 091395a8ee06a95218b62af7b2a81d8a3952a88d40a10018a84b62175375569a x86_64 glib2-2.56.1-12.el7_9.i686.rpm SHA-256: 6ddada053408ef37709d48f2a0f8c62f6190e79971fbb73f4420fd47e666575b glib2-2.56.1-12.el7_9.x86_64.rpm SHA-256: 28af173014077590e0740d3de96eeb81bac387f38289117a34b4a46d213a8b94 glib2-debuginfo-2.56.1-12.el7_9.i686.rpm SHA-256: 8f4534d1fd648be0d8023d3c853f58cb0288f242bb787ee66938dd8891b49471 glib2-debuginfo-2.56.1-12.el7_9.i686.rpm SHA-256: 8f4534d1fd648be0d8023d3c853f58cb0288f242bb787ee66938dd8891b49471 glib2-debuginfo-2.56.1-12.el7_9.x86_64.rpm SHA-256: c04103173f10fc43ac40e656206c9fff3f5945e045c725322f9d58ee5eedae10 glib2-debuginfo-2.56.1-12.el7_9.x86_64.rpm SHA-256: c04103173f10fc43ac40e656206c9fff3f5945e045c725322f9d58ee5eedae10 glib2-devel-2.56.1-12.el7_9.i686.rpm SHA-256: 81ce76de43fa6afd1ea93e86933615297271ade842836e2162b27e2c0adabd5b glib2-devel-2.56.1-12.el7_9.x86_64.rpm SHA-256: 05e1e02695a6a38a1209cd05d091a4c245d704def35302fe3ba175fa4bdb8b35 glib2-doc-2.56.1-12.el7_9.noarch.rpm SHA-256: f6e4e3090b6b5a0d50ebd61ffde67998e08aa532a756d142687812407f0b74d7 glib2-fam-2.56.1-12.el7_9.x86_64.rpm SHA-256: 8e52492e7d88a59efeb1c002c8eb268a3142c4cc7cb1bc226cf18aaef8f6e6bd glib2-static-2.56.1-12.el7_9.i686.rpm SHA-256: cd869cbdefad1894dc8fd82544e13dbb62c78d33913e2de399bae0e30dbc99d4 glib2-static-2.56.1-12.el7_9.x86_64.rpm SHA-256: c9881fb6b7c762eef839faf793c3c1a89adb2104f1adc91e26ad3f5301ffa6bb glib2-tests-2.56.1-12.el7_9.x86_64.rpm SHA-256: fed93dbab8eb4c1600964f87c4c79f7c75950da3c0539323c3b3b9ecf70b0f60 Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 SRPM glib2-2.56.1-12.el7_9.src.rpm SHA-256: 091395a8ee06a95218b62af7b2a81d8a3952a88d40a10018a84b62175375569a s390x glib2-2.56.1-12.el7_9.s390.rpm SHA-256: feb1445cc140e19fc01c3016cd69f981902e863eaffbf97655229115c33bc9bb glib2-2.56.1-12.el7_9.s390x.rpm SHA-256: cbc622b85cd0f6aa6b5c917057df90ddbc20fbd74ec6f32b74a4d9e506c135bd glib2-debuginfo-2.56.1-12.el7_9.s390.rpm SHA-256: ac4da73df5c5059a260bae9f1eb894eda3a7334e0424cfd8cc0ea54c7cbeb45a glib2-debuginfo-2.56.1-12.el7_9.s390.rpm SHA-256: ac4da73df5c5059a260bae9f1eb894eda3a7334e0424cfd8cc0ea54c7cbeb45a glib2-debuginfo-2.56.1-12.el7_9.s390x.rpm SHA-256: d418ae923f701088b1239624e535e0529324b9f62cb621afbd9a7b570fb609db glib2-debuginfo-2.56.1-12.el7_9.s390x.rpm SHA-256: d418ae923f701088b1239624e535e0529324b9f62cb621afbd9a7b570fb609db glib2-devel-2.56.1-12.el7_9.s390.rpm SHA-256: bfa0edaeed4ceca3222e4cfab3cf4746295c445cf1ba2f0d7d74f005ccec2d66 glib2-devel-2.56.1-12.el7_9.s390x.rpm SHA-256: 3b0f4d0b41959a3c40c98f7e4238d624224cc35837ce8dda2f369a5a8ced820b glib2-doc-2.56.1-12.el7_9.noarch.rpm SHA-256: f6e4e3090b6b5a0d50ebd61ffde67998e08aa532a756d142687812407f0b74d7 glib2-fam-2.56.1-12.el7_9.s390x.rpm SHA-256: 6e0536649e2faa389376129a4cb36778b3c70dfa44ba65a926d26694896888da glib2-static-2.56.1-12.el7_9.s390.rpm SHA-256: 2ec4ff3222af673ce324e014a04ade04e11c8503db5dc1ab8544845c2f4179c1 glib2-static-2.56.1-12.el7_9.s390x.rpm SHA-256: 42acee6007466aa96c176d7ed7256c486beb63edab8a2d024c229297206e5b99 glib2-tests-2.56.1-12.el7_9.s390x.rpm SHA-256: d9222ee3c55af55748962048c460f673f201cfea05257df47ea0b2efe888cfb4 Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 SRPM glib2-2.56.1-12.el7_9.src.rpm SHA-256: 091395a8ee06a95218b62af7b2a81d8a3952a88d40a10018a84b62175375569a ppc64 glib2-2.56.1-12.el7_9.ppc.rpm SHA-256: 792100aa98b16366c2d3f09364b89df008f985a63b985cdb733b84da3221bee4 glib2-2.56.1-12.el7_9.ppc64.rpm SHA-256: 0889e2731301b25d8c36a8f21068fd61329fd9b4d814f205cba117f2f2774628 glib2-debuginfo-2.56.1-12.el7_9.ppc.rpm SHA-256: 19af46ac0ed03bb9f425fe77b683ad5eebd9784070a7fe58e4e0b42d3d20ee91 glib2-debuginfo-2.56.1-12.el7_9.ppc.rpm SHA-256: 19af46ac0ed03bb9f425fe77b683ad5eebd9784070a7fe58e4e0b42d3d20ee91 glib2-debuginfo-2.56.1-12.el7_9.ppc64.rpm SHA-256: 8b9be3739b48203b72c2083eb4813252357135ed23d61e629f0e09b138eabc5a glib2-debuginfo-2.56.1-12.el7_9.ppc64.rpm SHA-256: 8b9be3739b48203b72c2083eb4813252357135ed23d61e629f0e09b138eabc5a glib2-devel-2.56.1-12.el7_9.ppc.rpm SHA-256: b1eb514361ee25d7841f311def71f6b4c6fbaf312d30395def9326daf2ac87f6 glib2-devel-2.56.1-12.el7_9.ppc64.rpm SHA-256: 4b2d4f666861ad4a922aab8f29166557e3ffb575fce5d4468992d9d2fd9bfc63 glib2-doc-2.56.1-12.el7_9.noarch.rpm SHA-256: f6e4e3090b6b5a0d50ebd61ffde67998e08aa532a756d142687812407f0b74d7 glib2-fam-2.56.1-12.el7_9.ppc64.rpm SHA-256: 9381de4a1c29e50bd33fb9b974139bc520fa3b1ffe3c37b69c0163b874482780 glib2-static-2.56.1-12.el7_9.ppc.rpm SHA-256: 143f4159c5aa34a65b592bc24a303487a25fb8e2c4f18d7ad5b616b841cd9912 glib2-static-2.56.1-12.el7_9.ppc64.rpm SHA-256: 8b29629aebe6d36579a4f2c6bf4242c56fa7c4baa1b95e81aba8f628564d4a35 glib2-tests-2.56.1-12.el7_9.ppc64.rpm SHA-256: 4792718f6493f04142e3bc687f444bdc5eb10bf01be33d5769b63966b6f802c6 Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 SRPM glib2-2.56.1-12.el7_9.src.rpm SHA-256: 091395a8ee06a95218b62af7b2a81d8a3952a88d40a10018a84b62175375569a ppc64le glib2-2.56.1-12.el7_9.ppc64le.rpm SHA-256: 0d114dbd12f6d04c462ea655859c0609ade743340cb3631f83b0b04f1831d398 glib2-debuginfo-2.56.1-12.el7_9.ppc64le.rpm SHA-256: 4530921a7a31981a085f819c8c37088db02eb126b9aba36332e4bdd5082d5a34 glib2-debuginfo-2.56.1-12.el7_9.ppc64le.rpm SHA-256: 4530921a7a31981a085f819c8c37088db02eb126b9aba36332e4bdd5082d5a34 glib2-devel-2.56.1-12.el7_9.ppc64le.rpm SHA-256: cc5129a9b6d0330b53135518e308fa1cf29ce8689b9cd8061bcc41c7bbdf7f39 glib2-doc-2.56.1-12.el7_9.noarch.rpm SHA-256: f6e4e3090b6b5a0d50ebd61ffde67998e08aa532a756d142687812407f0b74d7 glib2-fam-2.56.1-12.el7_9.ppc64le.rpm SHA-256: a3efd9357da549208bc5f2da81104904e4018f54bde4b6be162b2856cd6b3f75 glib2-static-2.56.1-12.el7_9.ppc64le.rpm SHA-256: 6077106c67646c982413b311e1b948616d1827ca95d9f5203746dbfbc317c79e glib2-tests-2.56.1-12.el7_9.ppc64le.rpm SHA-256: cde916f43072b8540d759abe3b65dcae5730df6cdc5c35a30a8d1f9e23d39f46 The Red Hat security contact is secalert@redhat.com . 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