CVE-2026-35093: A flaw was found in libinput

Routine

HIGH 8.8UPGRADEMITIGATE

CVE-2026-35093 is a high-severity flaw (CVSS 8.8) affecting libinput, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-01
Last modified	2026-10-26

Publisher (CNA): Red Hat, Inc. · Vendor: fedoraproject · freedesktop

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 14:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

freedesktop libinput UPGRADE

Affected: < 1.30.3 · >= 1.30.4 and < 1.31.1

Fixed in: 1.30.3, 1.31.1

Safe to downgrade to: a release before 1.30.4

1. Check installed version

apt-cache policy libinput || rpm -q libinput || libinput --version

2. UPGRADE to 1.30.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libinput

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libinput

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.30.4 (Debian / Ubuntu)

apt-cache madison libinput sudo apt install libinput=<VERSION_BEFORE_1.30.4> sudo apt-mark hold libinput

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libinput sudo dnf downgrade libinput-<VERSION_BEFORE_1.30.4> sudo dnf versionlock add libinput

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

fedoraproject fedora MITIGATE

Affected: 43 · 44

Fixed in: no fixed release known

Safe to downgrade to: a release before 43

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35093?

libinput: upgrade to 1.30.3, 1.31.1; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-35093 being exploited?

CVE-2026-35093 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35093 affect?

CVE-2026-35093 affects libinput, fedora. Severity is high (CVSS 8.8). 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

How urgent is CVE-2026-35093?

Priority 33/100. High severity

Related CVEs

CVE-2026-35094 LOW 3.3 MITIGATE MITIGATE A flaw was found in libinput

References

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