CVE-2026-15588
Fixed in a distro release EPSS <1%CVSS 5.3
A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Cert Manager support for Red Hat OpenShift release 1.17, Cert Manager support for Red Hat OpenShift release 1.18, Cert Manager support for Red Hat OpenShift release 1.19, Cert Manager support for Red Hat OpenShift release 1.20, Red Hat AI Inference Server 3.2, Red Hat AI Inference Server 3.5, Red Hat Discovery 2, Red Hat Hardened Images, Red Hat OpenShift AI 3.0, Red Hat OpenShift AI 3.2, Red Hat OpenShift AI 3.4, Red Hat OpenShift AI 3.5, Red Hat Update Infrastructure 5, Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | glib2 | 2.80.4-12.el10_2.21 |
| AlmaLinux 10 | glib2-devel | 2.80.4-12.el10_2.21 |
| AlmaLinux 10 | glib2-doc | 2.80.4-12.el10_2.21 |
| AlmaLinux 10 | glib2-static | 2.80.4-12.el10_2.21 |
| AlmaLinux 10 | glib2-tests | 2.80.4-12.el10_2.21 |
| AlmaLinux 8 | glib2 | 2.56.4-177.el8_10 |
| AlmaLinux 8 | glib2-devel | 2.56.4-177.el8_10 |
| AlmaLinux 8 | glib2-doc | 2.56.4-177.el8_10 |
| AlmaLinux 8 | glib2-fam | 2.56.4-177.el8_10 |
| AlmaLinux 8 | glib2-static | 2.56.4-177.el8_10 |
| AlmaLinux 8 | glib2-tests | 2.56.4-177.el8_10 |
| AlmaLinux 9 | glib2 | 2.68.4-19.el9_8.9 |
| AlmaLinux 9 | glib2-devel | 2.68.4-19.el9_8.9 |
| AlmaLinux 9 | glib2-doc | 2.68.4-19.el9_8.9 |
| AlmaLinux 9 | glib2-static | 2.68.4-19.el9_8.9 |
| AlmaLinux 9 | glib2-tests | 2.68.4-19.el9_8.9 |
| Debian 12 | glib2.0 | no fix |
| Debian 13 | glib2.0 | 2.84.4-3~deb13u4 |
| Debian 14 | glib2.0 | 2.88.3-1 |
| Red Hat Enterprise Linux 10.2 | glib2 | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-debuginfo | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-debugsource | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-devel | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-devel-debuginfo | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-doc | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-static | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-tests | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 10.2 | glib2-tests-debuginfo | 0:2.80.4-12.el10_2.21 |
| Red Hat Enterprise Linux 8 | glib2 | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-debuginfo | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-debugsource | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-devel | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-devel-debuginfo | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-doc | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-fam | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-fam-debuginfo | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-static | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-tests | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 8 | glib2-tests-debuginfo | 0:2.56.4-177.el8_10 |
| Red Hat Enterprise Linux 9 | glib2 | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-debuginfo | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-debugsource | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-devel | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-devel-debuginfo | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-doc | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-static | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-tests | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux 9 | glib2-tests-debuginfo | 0:2.68.4-19.el9_8.9 |
| Red Hat Enterprise Linux eus 10.0 | glib2 | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-debuginfo | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-debugsource | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-devel | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-devel-debuginfo | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-doc | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-static | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-tests | 0:2.80.4-4.el10_0.17 |
| Red Hat Enterprise Linux eus 10.0 | glib2-tests-debuginfo | 0:2.80.4-4.el10_0.17 |
| Red Hat hummingbird 1 | glib2 | 0:2.89.1-1.2.hum1 |
| Red Hat hummingbird 1 | glib2 | 0:2.89.1-1.1.hum1 |
| Red Hat hummingbird 1 | glib2 | 0:2.89.2-2.hum1 |
| Red Hat hummingbird 1 | glib2-devel | 0:2.89.2-2.hum1 |
| Red Hat hummingbird 1 | glib2-devel | 0:2.89.1-1.2.hum1 |
| Red Hat hummingbird 1 | glib2-devel | 0:2.89.1-1.1.hum1 |
| Red Hat hummingbird 1 | glib2-doc | 0:2.89.1-1.2.hum1 |
| Red Hat hummingbird 1 | glib2-doc | 0:2.89.2-2.hum1 |
| Red Hat hummingbird 1 | glib2-doc | 0:2.89.1-1.1.hum1 |
| Red Hat hummingbird 1 | glib2-static | 0:2.89.1-1.1.hum1 |
| Red Hat hummingbird 1 | glib2-static | 0:2.89.1-1.2.hum1 |
| Red Hat hummingbird 1 | glib2-static | 0:2.89.2-2.hum1 |
| Red Hat hummingbird 1 | glib2-tests | 0:2.89.2-2.hum1 |
| Red Hat hummingbird 1 | glib2-tests | 0:2.89.1-1.1.hum1 |
| Red Hat hummingbird 1 | glib2-tests | 0:2.89.1-1.2.hum1 |
| Red Hat rhel aus 8.4 | glib2 | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-debugsource | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-devel | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-devel-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-fam | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-fam-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-tests | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.4 | glib2-tests-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel aus 8.6 | glib2 | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-debugsource | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-devel | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-devel-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-fam | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-fam-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-tests | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel aus 8.6 | glib2-tests-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel e4s 8.8 | glib2 | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-debugsource | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-devel | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-devel-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-fam | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-fam-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-tests | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 8.8 | glib2-tests-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel e4s 9.2 | glib2 | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-debuginfo | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-debugsource | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-devel | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-devel-debuginfo | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-doc | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-tests | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.2 | glib2-tests-debuginfo | 0:2.68.4-7.el9_2.7 |
| Red Hat rhel e4s 9.4 | glib2 | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-debuginfo | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-debugsource | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-devel | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-devel-debuginfo | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-doc | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-tests | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel e4s 9.4 | glib2-tests-debuginfo | 0:2.68.4-14.el9_4.8 |
| Red Hat rhel els 7 | glib2 | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-debuginfo | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-devel | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-doc | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-fam | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-static | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel els 7 | glib2-tests | 0:2.56.1-13.el7_9.1 |
| Red Hat rhel eus 9.6 | glib2 | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-debuginfo | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-debugsource | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-devel | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-devel-debuginfo | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-doc | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-static | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-tests | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus 9.6 | glib2-tests-debuginfo | 0:2.68.4-16.el9_6.7 |
| Red Hat rhel eus long life 8.4 | glib2 | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-debugsource | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-devel | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-devel-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-fam | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-fam-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-tests | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.4 | glib2-tests-debuginfo | 0:2.56.4-10.el8_4.7 |
| Red Hat rhel eus long life 8.6 | glib2 | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-debugsource | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-devel | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-devel-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-fam | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-fam-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-tests | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel eus long life 8.6 | glib2-tests-debuginfo | 0:2.56.4-158.el8_6.7 |
| Red Hat rhel tus 8.8 | glib2 | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-debugsource | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-devel | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-devel-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-fam | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-fam-debuginfo | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-tests | 0:2.56.4-165.el8_8.2 |
| Red Hat rhel tus 8.8 | glib2-tests-debuginfo | 0:2.56.4-165.el8_8.2 |
| Rocky Linux 10 | glib2 | 0:2.80.4-12.el10_2.21 |
| Rocky Linux 8 | glib2 | 0:2.56.4-177.el8_10 |
| Rocky Linux 9 | glib2 | 0:2.68.4-19.el9_8.9 |
| SUSE Linux Enterprise Micro 5.3 | glib2 | 2.70.5-150400.3.40.1 |
| SUSE Linux Enterprise Micro 5.4 | glib2 | 2.70.5-150400.3.40.1 |
| SUSE Linux Enterprise Micro 5.5 | glib2 | 2.70.5-150400.3.40.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | glib2 | 2.78.6-150600.4.41.1 |
| SUSE Linux Enterprise Server 16.0 | glib2 | 2.84.4-160000.5.1 |
| SUSE Linux Enterprise Server 16.0 | glib2-doc | 2.84.4-160000.5.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | glib2 | 2.48.2-12.64.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | glib2 | 2.84.4-160000.5.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | glib2-doc | 2.84.4-160000.5.1 |
| SUSE Linux Micro 6.0 | glib2 | 2.76.2-14.1 |
| SUSE Linux Micro 6.1 | glib2 | 2.78.6-slfo.1.1_8.1 |
| SUSE Linux Micro 6.2 | glib2 | 2.84.4-160000.5.1 |
| Ubuntu 22.04 LTS | glib2.0 | 2.72.4-0ubuntu2.10 |
| Ubuntu 24.04 LTS | glib2.0 | 2.80.0-6ubuntu3.9 |
| Ubuntu 26.04 LTS | glib2.0 | 2.88.0-1ubuntu0.1 |
| Ubuntu Pro 14.04 LTS | glib2.0 | 2.40.2-0ubuntu1.1+esm8 |
| Ubuntu Pro 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.8+esm6 |
| Ubuntu Pro 18.04 LTS | glib2.0 | 2.56.4-0ubuntu0.18.04.9+esm6 |
| Ubuntu Pro 20.04 LTS | glib2.0 | 2.64.6-1~ubuntu20.04.9+esm2 |
| openSUSE Leap 16.0 | glib2 | 2.84.4-160000.5.1 |
| openSUSE Leap 16.0 | glib2-doc | 2.84.4-160000.5.1 |
| openSUSE Tumbleweed | glib2 | 2.88.3-1.1 |