Skip to content
Fencer Vulns
high 7.5

CVE-2026-58016 json

Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

published 2026-06-30 4 mo ago modified 2026-11-06 3 d ago also EUVD-2026-40319 , GHSA-8rpw-4xx7-27w7 , JLSEC-2026-1249

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

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.

Patch / fix

  • julia Glib_jll 2.88.3+0
  • GNOME GLib 2.89.0
  • Red Hat Red Hat Enterprise Linux 10 0:2.80.4-12.el10_2.14
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:2.80.4-4.el10_0.10
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.56.1-13.el7_9
  • Red Hat Red Hat Enterprise Linux 8 0:2.56.4-170.el8_10, 0:2.70.1-9.el8_10
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.56.4-10.el8_4.6
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.56.4-10.el8_4.6
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.56.4-158.el8_6.6
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:2.56.4-158.el8_6.6
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:2.56.4-165.el8_8.1
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.56.4-165.el8_8.1
  • Red Hat Red Hat Enterprise Linux 9 0:2.68.4-19.el9_8.2
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.68.4-7.el9_2.6
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:2.68.4-14.el9_4.7
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:2.68.4-16.el9_6.6
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.17 1791371069, 1791371080, 1791378395, 1791788287, 1791970484
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.18 1789029076, 1791459707, 1791459711, 1791459759, 1791966259
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.20 1790223279, 1790223719, 1790272426, 1790589855, 1790589912, 1790589914, 1790589998, 1790598593
  • Red Hat Red Hat Discovery 2 1784821670, 1784821750
  • Red Hat Red Hat Insights proxy 1.5 1786433656
  • Red Hat Red Hat OpenShift AI 3.0 1790276884, 1790276886, 1790276889, 1790276974, 1790277045
  • Red Hat Red Hat OpenShift AI 3.2 1790703494, 1790703497, 1790703506, 1790703568, 1790703586, 1790703590
  • Red Hat Red Hat OpenShift AI 3.4 1790703542
  • Red Hat Red Hat Update Infrastructure 5 1784794289, 1784794778, 1784794818, 1784795076, 1784795112, 1787135742, 1787241211, 1787241260
  • glib2.0 Debian 13 2.84.4-3~deb13u4
  • glib2.0 Debian 14 2.88.3-2

debian advisories DEBIAN-CVE-2026-58016

  • glib2.0 Ubuntu 22.04 LTS 2.72.4-0ubuntu2.10
  • glib2.0 Ubuntu 24.04 LTS 2.80.0-6ubuntu3.9
  • glib2.0 Ubuntu 26.04 LTS 2.88.0-1ubuntu0.1
  • glib2.0 Ubuntu Pro 14.04 LTS 2.40.2-0ubuntu1.1+esm8
  • glib2.0 Ubuntu Pro 16.04 LTS 2.48.2-0ubuntu4.8+esm6
  • glib2.0 Ubuntu Pro 18.04 LTS 2.56.4-0ubuntu0.18.04.9+esm6
  • glib2.0 Ubuntu Pro 20.04 LTS 2.64.6-1~ubuntu20.04.9+esm2

ubuntu advisories UBUNTU-CVE-2026-58016

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mingw-glib2 RHEL 8 2.70.1-9.el8_10
  • mingw32-glib2 RHEL 8 2.70.1-9.el8_10
  • mingw64-glib2 RHEL 8 2.70.1-9.el8_10
  • glib2 RHEL 8 2.56.4-170.el8_10
  • glib2-fam RHEL 8 2.56.4-170.el8_10
  • glib2-tests RHEL 8 2.56.4-170.el8_10
  • glib2 RHEL 9 2.68.4-19.el9_8.2
  • glib2-tests RHEL 9 2.68.4-19.el9_8.2

red hat advisories RHSA-2026:51185RHSA-2026:51184RHSA-2026:51181RHSA-2026:51182RHSA-2026:51183RHSA-2026:51177

  • glib2 Linux Micro 6.1 2.78.6-slfo.1.1_7.1
  • glib2 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 2.78.6-150600.4.38.1
  • glib2 Linux Micro 6.0 2.76.2-13.1
  • glib2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +8 more 2.70.5-150400.3.37.1
  • glib2 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.84.4-160000.4.1
  • glib2 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.48.2-12.61.1

suse advisories SUSE-SU-2026:23078-1SUSE-SU-2026:3341-1SUSE-SU-2026:23009-1SUSE-SU-2026:3236-1SUSE-SU-2026:3235-1SUSE-SU-2026:22846-1

  • glib2 openSUSE Leap 16.0 2.84.4-160000.4.1

opensuse advisories openSUSE-SU-2026:21410-1

  • mingw32-glib2 AlmaLinux 8 2.70.1-9.el8_10
  • mingw64-glib2 AlmaLinux 8 2.70.1-9.el8_10
  • glib2 AlmaLinux 10 2.80.4-12.el10_2.14
  • glib2-tests AlmaLinux 10 2.80.4-12.el10_2.14
  • glib2 AlmaLinux 9 2.68.4-19.el9_8.2
  • glib2-tests AlmaLinux 9 2.68.4-19.el9_8.2
  • glib2 AlmaLinux 8 2.56.4-170.el8_10
  • glib2-fam AlmaLinux 8 2.56.4-170.el8_10

almalinux advisories ALSA-2026:49512ALSA-2026:42063ALSA-2026:42089ALSA-2026:42090

  • mingw-glib2 Rocky Linux 8 2.70.1-9.el8_10
  • glib2 Rocky Linux 10 2.80.4-12.el10_2.14
  • glib2 Rocky Linux 9 2.68.4-19.el9_8.2
  • glib2 Rocky Linux 8 2.56.4-170.el8_10

rocky linux advisories RLSA-2026:49512RLSA-2026:42063RLSA-2026:42089RLSA-2026:42090

  • glib Alpine 3.23 2.86.4-r0

alpine advisories ALPINE-CVE-2026-58016

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • glib Azure Linux 3.0 2.78.6-11

azure linux advisories AZL-91433

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-58016 updated cvss 7.5

glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

  • Red Hat Enterprise Linux 6 glib2 Red Hat Enterprise Linux 9 mingw-glib2, mingw32-glib2, mingw64-glib2
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 10 mingw-glib2, mingw32-glib2, mingw64-glib2
    affected: workaround, no fix available
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.17 cert-manager/cert-manager-operator-rhel9 1791788287, cert-manager/jetstack-cert-manager-rhel9 1791371069, cert-manager/cert-manager-istio-csr-rhel9 1791378395, cert-manager/cert-manager-operator-bundle 1791970484, cert-manager/jetstack-cert-manager-acmesolver-rhel9 1791371080
    fixed: vendor fix RHSA-2026:82336
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.18 cert-manager/cert-manager-operator-rhel9 1789029076, cert-manager/jetstack-cert-manager-rhel9 1791459711, cert-manager/cert-manager-istio-csr-rhel9 1791459759, cert-manager/cert-manager-operator-bundle 1791966259, cert-manager/jetstack-cert-manager-acmesolver-rhel9 1791459707
    fixed: vendor fix RHSA-2026:82354
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.20 cert-manager/cert-manager-operator-rhel9 1790272426, cert-manager/cert-manager-operator-rhel9 1790589855, cert-manager/jetstack-cert-manager-rhel9 1790223279, cert-manager/jetstack-cert-manager-rhel9 1790589912, cert-manager/cert-manager-istio-csr-rhel9 1790223719, cert-manager/cert-manager-istio-csr-rhel9 1790589914, +2 more
    fixed: vendor fix RHSA-2026:72475
  • Red Hat CodeReady Linux Builder EUS (v.9.6) glib2-static 2.68.4-16.el9_6.6, glib2-debuginfo 2.68.4-16.el9_6.6, glib2-debugsource 2.68.4-16.el9_6.6, glib2-devel-debuginfo 2.68.4-16.el9_6.6, glib2-tests-debuginfo 2.68.4-16.el9_6.6
    fixed: vendor fix RHSA-2026:51175
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 1784821750, discovery/discovery-server-rhel9 1784821670
    fixed: vendor fix RHSA-2026:46836
  • Red Hat Enterprise Linux AppStream (v. 9) glib2-tests 2.68.4-19.el9_8.2
    fixed: vendor fix RHSA-2026:42089
show 29 more
  • Red Hat Enterprise Linux AppStream (v. 10) glib2-tests 2.80.4-12.el10_2.14
    fixed: vendor fix RHSA-2026:42063
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) glib2-tests 2.68.4-7.el9_2.6
    fixed: vendor fix RHSA-2026:51176
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) glib2-tests 2.68.4-14.el9_4.7
    fixed: vendor fix RHSA-2026:51177
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) glib2-tests 2.80.4-4.el10_0.10
    fixed: vendor fix RHSA-2026:51185
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) glib2-tests 2.68.4-16.el9_6.6
    fixed: vendor fix RHSA-2026:51175
  • Red Hat Enterprise Linux BaseOS (v. 8) glib2 2.56.4-170.el8_10, glib2-fam 2.56.4-170.el8_10, glib2-tests 2.56.4-170.el8_10
    fixed: vendor fix RHSA-2026:42090
  • Red Hat Enterprise Linux BaseOS (v. 9) glib2 2.68.4-19.el9_8.2
    fixed: vendor fix RHSA-2026:42089
  • Red Hat Enterprise Linux BaseOS (v. 10) glib2 2.80.4-12.el10_2.14
    fixed: vendor fix RHSA-2026:42063
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) glib2 2.56.4-10.el8_4.6, glib2-fam 2.56.4-10.el8_4.6, glib2-tests 2.56.4-10.el8_4.6
    fixed: vendor fix RHSA-2026:51184
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) glib2 2.56.4-158.el8_6.6, glib2-fam 2.56.4-158.el8_6.6, glib2-tests 2.56.4-158.el8_6.6
    fixed: vendor fix RHSA-2026:51181
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) glib2 2.56.4-165.el8_8.1, glib2-fam 2.56.4-165.el8_8.1, glib2-tests 2.56.4-165.el8_8.1
    fixed: vendor fix RHSA-2026:51182
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) glib2 2.68.4-7.el9_2.6
    fixed: vendor fix RHSA-2026:51176
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) glib2 2.68.4-14.el9_4.7
    fixed: vendor fix RHSA-2026:51177
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) glib2 2.80.4-4.el10_0.10
    fixed: vendor fix RHSA-2026:51185
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) glib2 2.68.4-16.el9_6.6
    fixed: vendor fix RHSA-2026:51175
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) glib2 2.56.4-10.el8_4.6, glib2-fam 2.56.4-10.el8_4.6, glib2-tests 2.56.4-10.el8_4.6
    fixed: vendor fix RHSA-2026:51184
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) glib2 2.56.4-158.el8_6.6, glib2-fam 2.56.4-158.el8_6.6, glib2-tests 2.56.4-158.el8_6.6
    fixed: vendor fix RHSA-2026:51181
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) glib2 2.56.4-165.el8_8.1, glib2-fam 2.56.4-165.el8_8.1, glib2-tests 2.56.4-165.el8_8.1
    fixed: vendor fix RHSA-2026:51182
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) glib2-static 2.68.4-19.el9_8.2, glib2-debuginfo 2.68.4-19.el9_8.2, glib2-debugsource 2.68.4-19.el9_8.2, glib2-devel-debuginfo 2.68.4-19.el9_8.2, glib2-tests-debuginfo 2.68.4-19.el9_8.2
    fixed: vendor fix RHSA-2026:42089
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) glib2-doc 2.80.4-12.el10_2.14, glib2-static 2.80.4-12.el10_2.14, glib2-debuginfo 2.80.4-12.el10_2.14, glib2-debugsource 2.80.4-12.el10_2.14, glib2-devel-debuginfo 2.80.4-12.el10_2.14, glib2-tests-debuginfo 2.80.4-12.el10_2.14
    fixed: vendor fix RHSA-2026:42063
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) glib2-doc 2.80.4-4.el10_0.10, glib2-static 2.80.4-4.el10_0.10, glib2-debuginfo 2.80.4-4.el10_0.10, glib2-debugsource 2.80.4-4.el10_0.10, glib2-devel-debuginfo 2.80.4-4.el10_0.10, glib2-tests-debuginfo 2.80.4-4.el10_0.10
    fixed: vendor fix RHSA-2026:51185
  • Red Hat Enterprise Linux CRB (v. 8) mingw-glib2 2.70.1-9.el8_10, mingw32-glib2 2.70.1-9.el8_10, mingw64-glib2 2.70.1-9.el8_10
    fixed: vendor fix RHSA-2026:42090
  • Red Hat Enterprise Linux Server (v. 7 ELS) glib2 2.56.1-13.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) glib2-fam 2.56.1-13.el7_9, glib2-tests 2.56.1-13.el7_9
    fixed: vendor fix RHSA-2026:51183
  • Red Hat Insights proxy 1.5 insights-proxy/insights-proxy-container-rhel9 1786433656
    fixed: vendor fix RHSA-2026:53371
  • Red Hat OpenShift AI 3.0 rhai/base-image-cpu-rhel9 1790277045, rhai/base-image-tpu-rhel9 1790276884, rhai/base-image-cuda-rhel9 1790276974, rhai/base-image-rocm-rhel9 1790276886, rhai/base-image-spyre-rhel9 1790276889
    fixed: vendor fix RHSA-2026:73960
  • Red Hat OpenShift AI 3.2 rhai/base-image-cpu-rhel9 1790703590, rhai/base-image-tpu-rhel9 1790703497, rhai/base-image-cuda-rhel9 1790703586, rhai/base-image-rocm-rhel9 1790703494, rhai/base-image-rocm-rhel9 1790703506, rhai/base-image-spyre-rhel9 1790703568
    fixed: vendor fix RHSA-2026:74460
  • Red Hat OpenShift AI 3.4 rhai/base-image-neuron-rhel9 1790703542
    fixed: vendor fix RHSA-2026:74674
  • Red Hat Update Infrastructure 5 rhui5/cds-rhel9 1784794778, rhui5/rhua-rhel9 1784795076, rhui5/haproxy-rhel9 1784795112, rhui5/rhua-tp-rhel9 1787241260, rhui5/installer-rhel9 1784794289, rhui5/installer-tp-rhel9 1787135742, +2 more
    fixed: vendor fix RHSA-2026:44481
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.20 cert-manager/jetstack-cert-manager-acmesolver-rhel9 1790223630 Red Hat Hardened Images glib2
    not affected: vulnerable code not present

2 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/glib/-/issues/3932 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
OSV 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia Glib_jll
<2.88.3+0
2.88.3+0

Affected products

  • GNOME GLib
  • 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)

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.