Description
A flaw was found in libinput. A local attacker who can place a specially crafted Lua bytecode file in certain system or user configuration directories can bypass security restrictions. This allows the attacker to run unauthorized code with the same permissions as the program using libinput, such as a graphical compositor. This could lead to the attacker monitoring keyboard input and sending that information to an external location.
Affected products
freedesktop: libinput; fedoraproject: fedora
References6
- access.redhat.com/security/cve/CVE-2026-35093 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2453839 Issue TrackingThird Party Advisory
- gitlab.freedesktop.org/libinput/libinput/-/work_items/1271 Broken Link
- access.redhat.com/security/cve/CVE-2026-35093 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2453839 Issue TrackingThird Party Advisory
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35093…
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 8 · as of 12 November 2026
- CWE
- CWE-94
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.