FedoraOperating system · Fedoraproject
CVE-2026-35094
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA dangling pointer vulnerability exists in libinput's Lua plugin handling where a garbage collection cleanup function leaves a pointer that can be printed to system logs, potentially exposing sensitive data if the memory location is reused. The attacker must deploy a Lua plugin file in specific system directories and Lua plugins must be enabled in libinput and loaded by the compositor.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
FedoraOperating system
= 43= 44all versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check libinput versionRun 'libinput --version' or check your system package manager for the installed libinput versionAffected if The installed version is any version of Freedesktop Libinput (all versions affected) or Fedora 43/44
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Verify if Lua plugins are enabled in libinputInspect libinput configuration files for any Lua plugin enablement settings (common locations: /etc/libinput, /etc/modprobe.d, or compositor-specific config)Affected if Lua plugin support is enabled in the libinput configuration
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Inspect system directories for Lua plugin filesSearch system directories where Lua plugins may be stored (check documentation for your distribution or compositor for plugin directories)Affected if Any Lua plugin files exist in libinput plugin directories, especially untrusted or unknown files
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Review system logs for libinput outputExamine logs from the compositor and system logs (journalctl, dmesg, or /var/log) for any libinput output that may contain unexpected pointer values or sensitive dataAffected if Logs contain dangling pointer output or unexpected data strings originating from libinput's Lua plugin handling
If Lua plugins are enabled in libinput and any plugin files exist in system directories, the environment is affected by this vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataDisable Lua plugins in libinput if not required, or ensure only trusted plugin files exist in system directories and verify no sensitive data appears in system logs.
Fix this in Fedora
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-35094 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-35094 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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