CVE-2026-35093

Libinput: libinput: unauthorized code execution and information disclosure through lua bytecode plugins

publishedCWE-94

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.

Technical severity8.8 highCVSS 3.1 · CNA: redhat

Published2026-04-01Source updated 2026-11-04

Collected2026-11-053 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
Red Hat Enterprise Linux 10 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 7 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat
Red Hat Enterprise Linux 8 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 9 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 10 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	ADP: redhat-SADP
Red Hat Enterprise Linux 7 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	ADP: redhat-SADP
Red Hat Enterprise Linux 8 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	ADP: redhat-SADP
Red Hat Enterprise Linux 9 Red Hat `libinput` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	ADP: redhat-SADP

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

NVD applicability configurations (1)

These expressions retain AND/OR operators, negation, and required environmental products. A listed product is not sufficient to establish exposure when additional conditions apply.

[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:freedesktop:libinput:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.30.3",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:freedesktop:libinput:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.31.1",
            "versionStartIncluding": "1.30.4",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:fedoraproject:fedora:43:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:fedoraproject:fedora:44:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 8.8 high	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`	CNA: redhat
3.1 / 8.8 high	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`	ADP: redhat-SADP
3.1 / 8.8 high	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`	NVD: [email protected]
3.1 / 8.8 high	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`	NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/security/cve/CVE-2026-35093CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2453839CNA: redhat · issue-tracking, x_refsource_REDHAT
https://gitlab.freedesktop.org/libinput/libinput/-/work_items/1271CNA: redhat
https://access.redhat.com/security/cve/CVE-2026-35093ADP: redhat-SADP · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2453839ADP: redhat-SADP · issue-tracking, x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35093.jsonADP: redhat-SADP · x_sadp-csaf-vex
https://access.redhat.com/security/cve/CVE-2026-35093[email protected] · Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2453839[email protected] · Issue Tracking, Third Party Advisory
https://gitlab.freedesktop.org/libinput/libinput/-/work_items/1271[email protected] · Broken Link
https://access.redhat.com/security/cve/CVE-2026-350930b0ca135-0b70-47e7-9f44-1890c2a1c46c · Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=24538390b0ca135-0b70-47e7-9f44-1890c2a1c46c · Issue Tracking, Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35093.json0b0ca135-0b70-47e7-9f44-1890c2a1c46c

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