---
id: CVE-2026-58016
title: A flaw was found in GLib
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 ele…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-191
vendor: gnome
product: glib
affected:
  - glib < 2.88.1
  - enterprise_linux = 6.0
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - enterprise_linux = 10.0
patched:
  - glib 2.88.1
published: '2026-06-30'
updated: '2026-08-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-58016'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:42063'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:42089'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:42090'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:44481'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:46836'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:49512'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-58016'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2492257'
    label: secalert@redhat.com
  - url: 'https://gitlab.gnome.org/GNOME/glib/-/issues/3932'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00993
epssPercentile: 0.61026
ingestedAt: '2026-08-03T04:23:35.626Z'
---

## Overview

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

- `glib < 2.88.1`
- `enterprise_linux = 6.0`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `enterprise_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `glib 2.88.1`