CVE-2026-58016
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk26th percentile — higher than 26% of all known CVEs
Summary
A flaw was found in GLib where a state confusion issue in g_dbus_node_info_new_for_xml() when processing malformed D-Bus introspection XML, specifically with a <node> element nested within other elements like <method>, <signal>, <property> or <arg>, can cause an unsigned integer overflow and out-of-bounds read, leading to a denial of service.
Risk Assessment
An attacker can remotely crash applications using GLib by sending a crafted D-Bus introspection XML, causing a denial of service (DoS).
Recommendation
Update GLib to the patched version immediately. If not possible, restrict D-Bus service access to trusted sources only.
Original NVD description (English source)
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.