CVE-2026-91786
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
37/100
Published: 2026-09-15
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Auth
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
Low
I:
None
A:
High
Description
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.
Weakness Classification (1)
References & Advisories (3)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT