CVE-2026-58016

Name	CVE-2026-58016
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1141316

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
glib2.0 (PTS)	bookworm	2.74.6-2+deb12u9	vulnerable
	bookworm (security)	2.74.6-2+deb12u2	vulnerable
	trixie	2.84.4-3~deb13u5	fixed
	forky, sid	2.90.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
glib2.0	source	trixie	2.84.4-3~deb13u4
glib2.0	source	(unstable)	2.88.3-2			1141316

Notes

[bookworm] - glib2.0 <postponed> (Minor issue; GDBus introspection-XML OOB-read DoS; no upstream fix yet)
[bullseye] - glib2.0 <postponed> (Minor issue; GDBus introspection-XML OOB-read DoS; no upstream fix yet)
https://gitlab.gnome.org/GNOME/glib/-/work_items/3932
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5156 (2.89.0)