MEDIUM 6.1 NVD
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 agai
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.
References
- 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
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-09-15 via NVD.
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