CVE-2026-93534 spatie Scotty Self Update SelfUpdater.php update code download
Remote attackers can execute arbitrary code by exploiting a lack of integrity checks during the self-update process in the Scotty library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-93534?
CVE-2026-93534 is a medium-severity code injection vulnerability in spatie Scotty, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was identified in spatie Scotty up to 1.4.2. Affected is the function SelfUpdater::update of the file app/Updater/SelfUpdater.php of the component Self Update Handler. Such manipulation leads to download of code without integrity check. It is possible to launch the attack remotely. Upgrading to version 1.4.3 is able to address this issue. The name of the patch is 4b4e11bfc98e3a2159bb2b3d9b040293fcc44744. It is advisable to upgrade the affected component.
Weakness: CWE-494
Which versions are affected by CVE-2026-93534?
How do I fix CVE-2026-93534?
No fix has been published for CVE-2026-93534 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-93534 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93534 exists.
Sources
Also known as GHSA-m88j-9w7j-676j.