Description
A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a `node` element nested within other elements like `method`, `signal`, `property` or `arg`. This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNOME | GLib | < 2.89.0 | 2.89.0 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 | — | — |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | — | — |
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | — | — |
| Red Hat | Red Hat Discovery 2 | — | — |
| Red Hat | Red Hat Insights proxy 1.5 | — | — |
| Red Hat | Red Hat OpenShift AI 3.0 | — | — |
| Red Hat | Red Hat OpenShift AI 3.2 | — | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — | — |
| Red Hat | Red Hat Update Infrastructure 5 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glib2.0 | 2.88.3-2 | — |
| Debian 13 | glib2.0 | 2.84.4-3~deb13u4 | — |
| Debian 12 | glib2.0 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | glib2.0 | 2.88.0-1ubuntu0.1 | USN-8794-1 |
| Ubuntu 25.10 | glib2.0 | No fix yet | — |
| Ubuntu 24.04 LTS | glib2.0 | 2.80.0-6ubuntu3.9 | USN-8794-1 |
| Ubuntu 22.04 LTS | glib2.0 | 2.72.4-0ubuntu2.10 | USN-8794-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | glib2.0 | 2.64.6-1~ubuntu20.04.9+esm2 | USN-8794-1 |
| Ubuntu Pro 18.04 LTS | glib2.0 | 2.56.4-0ubuntu0.18.04.9+esm6 | USN-8794-1 |
| Ubuntu Pro 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.8+esm6 | USN-8794-1 |
| Ubuntu Pro 14.04 LTS | glib2.0 | 2.40.2-0ubuntu1.1+esm8 | USN-8794-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | glib2 +4 | 2.80.4-12.el10_2.14 | RHSA-2026:42063 |
| RHEL 9 | glib2 +4 | 2.68.4-19.el9_8.2 | RHSA-2026:42089 |
| RHEL 8 | glib2 +5 | 2.56.4-170.el8_10 | RHSA-2026:42090 |
| RHEL 8 | mingw-glib2 +4 | 2.70.1-9.el8_10 | RHSA-2026:49512 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | glib2 +4 | 2.80.4-4.el10_0.10 | RHSA-2026:51185 |
| RHEL 9.6 EUS | glib2 +4 | 2.68.4-16.el9_6.6 | RHSA-2026:51175 |
| RHEL 9.4 E4S | glib2 +3 | 2.68.4-14.el9_4.7 | RHSA-2026:51177 |
| RHEL 9.2 E4S | glib2 +3 | 2.68.4-7.el9_2.6 | RHSA-2026:51176 |
| RHEL 8.8 TUS | glib2 +3 | 2.56.4-165.el8_8.1 | RHSA-2026:51182 |
| RHEL 8.8 E4S | glib2 +3 | 2.56.4-165.el8_8.1 | RHSA-2026:51182 |
| RHEL 8.6 EUS Long Life | glib2 +3 | 2.56.4-158.el8_6.6 | RHSA-2026:51181 |
| RHEL 8.6 AUS | glib2 +3 | 2.56.4-158.el8_6.6 | RHSA-2026:51181 |
| RHEL 8.4 EUS Long Life | glib2 +3 | 2.56.4-10.el8_4.6 | RHSA-2026:51184 |
| RHEL 8.4 AUS | glib2 +3 | 2.56.4-10.el8_4.6 | RHSA-2026:51184 |
| RHEL 7 ELS | glib2 +5 | 2.56.1-13.el7_9 | RHSA-2026:51183 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | glib2 +4 | 2.80.4-12.el10_2.14 | ALSA-2026:42063 |
| AlmaLinux 9 | glib2 +4 | 2.68.4-19.el9_8.2 | ALSA-2026:42089 |
| AlmaLinux 8 | glib2 +5 | 2.56.4-170.el8_10 | ALSA-2026:42090 |
| AlmaLinux 8 | mingw32-glib2 +3 | 2.70.1-9.el8_10 | ALSA-2026:49512 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | glib2 | 2.80.4-12.el10_2.14 | RLSA-2026:42063 |
| Rocky Linux 10 | mingw32-glib2 +3 | 2.89.2-1.el10 | RLSA-2026:97163 |
| Rocky Linux 9 | glib2 | 2.68.4-19.el9_8.2 | RLSA-2026:42089 |
| Rocky Linux 8 | glib2 | 2.56.4-170.el8_10 | RLSA-2026:42090 |
| Rocky Linux 8 | mingw-glib2 | 2.70.1-9.el8_10 | RLSA-2026:49512 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | glib2 | 2.78.6-150600.4.38.1 | SUSE-SU-2026:3341-1 |
| SLES 15 SP6 | glib2 | 2.78.6-150600.4.38.1 | SUSE-SU-2026:3341-1 |
| SLES 15 SP5 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLES 15 SP4 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLES 12 SP5 | glib2 | 2.48.2-12.61.1 | SUSE-SU-2026:3236-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | glib2 +1 | 2.84.4-160000.4.1 | SUSE-SU-2026:22846-1 |
| SLES for SAP 15 SP6 | glib2 | 2.78.6-150600.4.38.1 | SUSE-SU-2026:3341-1 |
| SLES for SAP 15 SP5 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLES for SAP 15 SP4 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLES 16.0 | glib2 +1 | 2.84.4-160000.4.1 | SUSE-SU-2026:22846-1 |
| SLE Micro 6.2 | glib2 | 2.84.4-160000.4.1 | SUSE-SU-2026:22928-1 |
| SLE Micro 6.1 | glib2 | 2.78.6-slfo.1.1_7.1 | SUSE-SU-2026:23078-1 |
| SLE Micro 6.0 | glib2 | 2.76.2-13.1 | SUSE-SU-2026:23009-1 |
| SLE Micro 5.5 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLE Micro 5.4 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLE Micro 5.3 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLE HPC 15 SP5 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
| SLE HPC 15 SP4 | glib2 | 2.70.5-150400.3.37.1 | SUSE-SU-2026:3235-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | glib2 +1 | 2.84.4-160000.4.1 | openSUSE-SU-2026:21410-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | glib | 2.86.4-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | glib2 +4 | 2.82.2-770.amzn2023 | ALAS2023-2026-1942 |
| Amazon Linux 2 | glib2 +5 | 2.56.1-9.amzn2.0.14 | ALAS2-2026-3803 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | glib | 2.78.6-11 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | glib2 +4 | 2.80.4-12.el10_2.14 | ELSA-2026-42063 |
| Oracle Linux 9 | glib2 +4 | 2.68.4-19.el9_8.2 | ELSA-2026-42089 |
| Oracle Linux 8 | glib2 +5 | 2.56.4-170.el8_10 | ELSA-2026-42090 |
| Oracle Linux 8 | mingw32-glib2 +3 | 2.70.1-9.el8_10 | ELSA-2026-49512 |
| Oracle Linux 7 | glib2 +5 | 2.56.1-9.0.7.el7_9 | ELSA-2026-51183 |
Advisories 44
- RLSA-2026:97163 Moderate: mingw-glib2 security, bug fix, and enhancement update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-4090 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- WID-SEC-2026-2419 Red Hat Enterprise Linux (sssd, glib, c-ares): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- ALSA-2026:42089 Important: glib2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:42063 Important: glib2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:49512 Important: mingw-glib2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:42090 Important: glib2 security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-2919 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2026
- NCSC-2026-0444 Kwetsbaarheden verholpen in Oracle Communications NCSC-NL (Netherlands) · Oct 21, 2026
- WID-SEC-2026-3623 IBM DataPower Gateway: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2026:49512 Red Hat Security Advisory: mingw-glib2 security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- NCSC-2026-0431 Kwetsbaarheden verholpen in IBM DataPower Gateway en onderliggende componenten NCSC-NL (Netherlands) · Oct 16, 2026
- RHSA-2026:51185 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51183 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51184 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51181 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51182 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51177 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51176 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:51175 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:42090 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:42089 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:42063 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- USN-8794-1 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Sep 22, 2026
- WID-SEC-2026-3043 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- SUSE-SU-2026:23078-1 Security update for glib2 SUSE / openSUSE Security Updates · Aug 14, 2026
- SUSE-SU-2026:23009-1 Security update for glib2 SUSE / openSUSE Security Updates · Aug 12, 2026
- ELSA-2026-51183 Important: glib2 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 12, 2026
- RLSA-2026:49512 Important: mingw-glib2 security update Rocky Linux Security Advisories · Aug 4, 2026
- ELSA-2026-49512 Important: mingw-glib2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 4, 2026
- SUSE-SU-2026:22928-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 29, 2026
- SUSE-SU-2026:3341-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 28, 2026
- SUSE-SU-2026:3236-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 28, 2026
- SUSE-SU-2026:3235-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 28, 2026
- SUSE-SU-2026:22846-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 28, 2026
- openSUSE-SU-2026:21410-1 Security update for glib2 SUSE / openSUSE Security Updates · Jul 24, 2026
- RLSA-2026:42063 Important: glib2 security update Rocky Linux Security Advisories · Jul 22, 2026
- RLSA-2026:42089 Important: glib2 security update Rocky Linux Security Advisories · Jul 22, 2026
- RLSA-2026:42090 Important: glib2 security update Rocky Linux Security Advisories · Jul 21, 2026
- ALAS2-2026-3803 Important: glib2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 20, 2026
- ALAS2023-2026-1942 Important: glib2 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 20, 2026
- ELSA-2026-42089 Important: glib2 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 20, 2026
- ELSA-2026-42090 Important: glib2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 20, 2026
- ELSA-2026-42063 Important: glib2 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 20, 2026
References
- RHSA-2026:42063 vendor-advisory
- RHSA-2026:42089 vendor-advisory
- RHSA-2026:42090 vendor-advisory
- RHSA-2026:44481 vendor-advisory
- RHSA-2026:46836 vendor-advisory
- RHSA-2026:49512 vendor-advisory
- RHSA-2026:51175 vendor-advisory
- RHSA-2026:51176 vendor-advisory
- RHSA-2026:51177 vendor-advisory
- RHSA-2026:51181 vendor-advisory
- RHSA-2026:51182 vendor-advisory
- RHSA-2026:51183 vendor-advisory
- RHSA-2026:51184 vendor-advisory
- RHSA-2026:51185 vendor-advisory
- RHSA-2026:53371 vendor-advisory
- RHSA-2026:58981 vendor-advisory
- RHSA-2026:72394 vendor-advisory
- RHSA-2026:72395 vendor-advisory
- RHSA-2026:72399 vendor-advisory
- RHSA-2026:72470 vendor-advisory
- RHSA-2026:72475 vendor-advisory
- RHSA-2026:72476 vendor-advisory
- RHSA-2026:72502 vendor-advisory
- RHSA-2026:73909 vendor-advisory
- RHSA-2026:73959 vendor-advisory
- RHSA-2026:73960 vendor-advisory
- RHSA-2026:73961 vendor-advisory
- RHSA-2026:73962 vendor-advisory
- RHSA-2026:74458 vendor-advisory
- RHSA-2026:74459 vendor-advisory
- RHSA-2026:74460 vendor-advisory
- RHSA-2026:74461 vendor-advisory
- RHSA-2026:74462 vendor-advisory
- RHSA-2026:74463 vendor-advisory
- RHSA-2026:74674 vendor-advisory
- RHSA-2026:82304 vendor-advisory
- RHSA-2026:82322 vendor-advisory
- RHSA-2026:82336 vendor-advisory
- RHSA-2026:82347 vendor-advisory
- RHSA-2026:82354 vendor-advisory
- RHSA-2026:82372 vendor-advisory
- RHSA-2026:82857 vendor-advisory
- RHSA-2026:82888 vendor-advisory
- RHSA-2026:97163 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-58016 vdb-entry
- RHBZ#2492257 issue-tracking
- https://gitlab.gnome.org/GNOME/glib/-/issues/3932