# CVE-2026-35093: Libinput: libinput: unauthorized code execution and information disclosure through lua bytecode plugins

CVE-2026-35093 is fixed in libinput on 1 platform by DEBIAN-CVE-2026-35093 (version 1.31.1-1), released April 1, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-35093
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 1, 2026
- Weakness: Improper Control of Generation of Code ('Code Injection')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35093

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libinput Debian 14 | 1.31.1-1 | [DEBIAN-CVE-2026-35093](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35093.md) | Apr 1, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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