CVE-2026-58016

CVE Details

Release Date:	2026-06-30
Impact:	Important	What is this?

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 element nested within other elements like , , or . This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

See more information about CVE-2026-58016 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.5
Vector String:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (glib2)	ELSA-2026-42063	2026-07-20
Oracle Linux version 8 (glib2)	ELSA-2026-42090	2026-07-20
Oracle Linux version 9 (glib2)	ELSA-2026-42089	2026-07-20