CVE-2026-58011

A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.

• glib2.0 2.88.1-2 [trixie] - glib2.0 (Minor issue) [bookworm] - glib2.0 (Minor issue; GDateTime 2-byte over-read, reachability-gated) [bullseye] - glib2.0 (Minor issue; GDateTime 2-byte over-read, reachability-gated) https://gitlab.gnome.org/GNOME/glib/-/work_items/3917 https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5131 (2.89.0) https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5134 (2.88.1) https://gitlab.gnome.org/GNOME/glib/-/merge_requests/5135 (2.86.5)