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Date: Thu, 2 Jul 2026 23:15:56 +0200
To: submit@bugs.debian.org
Subject: glib2.0: CVE-2026-58016
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From: =?UTF-8?Q?Moritz_M=C3=BChlenhoff?= <jmm@inutil.org>
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Source: glib2.0
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for glib2.0.

CVE-2026-58016[0]:
| 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.

https://gitlab.gnome.org/GNOME/glib/-/work_items/3932
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5156 (2.89.0)


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-58016
    https://www.cve.org/CVERecord?id=CVE-2026-58016

Please adjust the affected versions in the BTS as needed.
]