CVE-2026-58014: Gnome Glib

High severity, CVSS 8.6. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.

Affected products

• Gnome Glib: before 2.88.1 (fixed in 2.88.1)
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only

Published 2026-06-30. Last modified 2026-10-09.