9.0
Critical
CVE-2026-56000 Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland…
Description
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| xorg-x11-server 21.1 | earliest → < 21.1.24 | 21.1.24 |
| xwayland 24.1 | earliest → < 24.1.13 | 24.1.13 |
References
- gitlab.freedesktop.org gitlab.freedesktop.org
- www.openwall.com www.openwall.com
Timeline
- Published
- Last modified
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