CVE-2026-58016
Publication date 30 June 2026
Last updated 1 July 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| glib2.0 | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-58016
- https://gitlab.gnome.org/GNOME/glib/-/work_items/3932
- https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5156 (2.89.0)
- https://access.redhat.com/security/cve/CVE-2026-58016
- https://bugzilla.redhat.com/show_bug.cgi?id=2492257
- https://gitlab.gnome.org/GNOME/glib/-/issues/3932