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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- EPSS probability
- 0.13%
- CWE
- CWE-125
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Weakness type
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