CVE-2026-91786

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

6.1 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-28/9/2026

CWE

CWE-125

קישורים

• 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