Red HatCVE-2026-91786
Red Hat GNOME Shell.: out-of-bounds read
Medium6.1CVE-2026-91786 · Published Sep 15, 2026 · updated Sep 16, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-125
More Red Hat advisories
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|---|---|---|---|
| Sep 15 | Red Hat Podman: insecure permissions | Medium5.5 | No fix yet |
| Sep 15 | Red Hat file-psd plugin: integer overflow | High7.8 | No fix yet |
| Sep 15 | Red Hat tftp-hpa.: out-of-bounds read | High7.5 | No fix yet |
| Sep 15 | Red Hat containers/storage: link following | Medium4.4 | No fix yet |
| Sep 15 | Red Hat buildah/copier Go: path traversal | Medium4.5 | No fix yet |
| Sep 15 | Red Hat environment-modules: command injection | High7.3 | No fix yet |