CVE-2026-94281 Out-of-bounds read in libXi's XListInputDevices() class parsing
A malicious X server can crash an attached X client via an out-of-bounds read in libXi's input device parsing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-94281?
CVE-2026-94281 is a medium-severity memory corruption vulnerability in x.org libXi, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An out-of-bounds read in libXi's XListInputDevices() class parsing in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.
Weakness: CWE-125
Which versions are affected by CVE-2026-94281?
How do I fix CVE-2026-94281?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-94281 being exploited?
There is no known exploitation of CVE-2026-94281 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2026-94281, AZL-104060, BELL-CVE-2026-94281, DEBIAN-CVE-2026-94281, ECHO-2aee-4e8e-fe64, GHSA-gmhc-ppjv-3q65 and 1 more.