CVE-2026-91786
Fixed in a distro release EPSS <1%CVSS 6.1
A flaw was found in GNOME Shell. When processing icons from a remote search provider via D-Bus, the system fails to validate the icon's declared dimensions against the actual data buffer size. A malicious or compromised remote search provider could exploit this by providing oversized icon dimensions, leading to an out-of-bounds read. This can cause the GNOME Shell process to crash, disrupting the user's session, and potentially disclose sensitive information from adjacent memory.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | gnome-shell | no fix |
| Debian 13 | gnome-shell | no fix |
| Debian 14 | gnome-shell | 50.5-1 |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | gnome-shell | 45.3-150700.11.6.1 |
| SUSE Linux Enterprise Server 16.0 | gnome-shell | 48.4-160000.2.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | gnome-shell | 3.20.4-77.31.2 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | gnome-shell | 48.4-160000.2.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | gnome-shell | 45.3-150700.11.6.1 |
| Ubuntu 18.04 LTS | gnome-shell | no fix |
| Ubuntu 20.04 LTS | gnome-shell | no fix |
| Ubuntu 22.04 LTS | gnome-shell | no fix |
| Ubuntu 24.04 LTS | gnome-shell | no fix |
| Ubuntu 26.04 LTS | gnome-shell | no fix |
| Ubuntu Pro 16.04 LTS | gnome-shell | no fix |
| openSUSE Leap 16.0 | gnome-shell | 48.4-160000.2.1 |