Out-of-bounds Read Affecting gnome-shell package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-RHEL7-GNOMESHELL-20009608
  • published20 Sept 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-91786  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 gnome-shell.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnome-shell package and not the gnome-shell package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1