CVE-2026-91786

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 v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-91786
https://bugzilla.redhat.com/show_bug.cgi?id=2533606
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/9365

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 11:17

Updated : 2026-09-15 14:17

NVD link : CVE-2026-91786

Mitre link : CVE-2026-91786

CVE.ORG link : CVE-2026-91786

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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