CVE-2026-35094 Libinput: libinput: information disclosure via dangling pointer in lua plugin handling

What is CVE-2026-35094?

CVE-2026-35094 is a low-severity use after free vulnerability in Fedoraproject Fedora, published on 1 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-825

Which versions are affected by CVE-2026-35094?

It affects 2 products.

Products include Fedoraproject Fedora, Freedesktop Libinput.

How do I fix CVE-2026-35094?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-35094 being exploited?

There is no known exploitation of CVE-2026-35094 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-35094, GHSA-9pg8-4hvg-h64m.