Description
A flaw was found in libinput. An attacker capable of deploying a Lua plugin file in specific system directories can exploit a dangling pointer vulnerability. This occurs when a garbage collection cleanup function is called, leaving a pointer that can then be printed to system logs. This could potentially expose sensitive data if the memory location is re-used, leading to information disclosure. For this exploit to work, Lua plugins must be enabled in libinput and loaded by the compositor.
Affected products
freedesktop: libinput; fedoraproject: fedora
References3
- access.redhat.com/security/cve/CVE-2026-35094 Third Party AdvisoryVDB Entry
- bugzilla.redhat.com/show_bug.cgi?id=2453840 Issue TrackingThird Party Advisory
- gitlab.freedesktop.org/libinput/libinput/-/work_items/1272 Broken Link
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 4 · as of 12 November 2026
- CWE
- CWE-825
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.