CVE-2026-35093
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
A flaw was found in libinput that allows a local attacker to bypass security restrictions by placing a specially crafted Lua bytecode file in certain system or user configuration directories. The attacker can run unauthorized code with the same permissions as the program using libinput, such as a graphical compositor. This could lead to monitoring keyboard input and sending that information to an external location.
Risk Assessment
The risk involves the potential interception of sensitive keyboard input data, such as passwords and login credentials, by a local attacker without requiring special privileges. This breach could compromise the entire system's security and user confidentiality.
Recommendation
Immediately update the libinput library to the latest available version that includes a fix for this vulnerability. Additionally, restrict access to system and user configuration directories to trusted processes only.
Other vulnerabilities in libinput
See all- CVE-2026-50292High
In libinput before 1.30.4 and 1.31.x before 1.31.3, libinput-device-group unescaped phys output can inject udev properties leading to arbitrary root code execution.
- CVE-2026-35094Low
A dangling pointer flaw was found in libinput. It 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. Exploitation requires Lua plugins to be enabled in libinput and loaded by the compositor, and the ability to deploy a plugin file in specific system directories.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS