CVE-2026-112772 Craft CMS 5.0.0 before 5.11.0 RCE via Asset::getMimeType Transform Injection
Authenticated Craft CMS users can execute arbitrary code by injecting malicious behaviors via asset transforms, bypassing the Twig sandbox.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112772?
CVE-2026-112772 is a high-severity code injection vulnerability in craftcms cms, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Craft CMS from 5.0.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated Control Panel users to escape the Twig sandbox via Asset::getMimeType transforms. Attackers can supply 'as' or 'on' keys passed unfiltered to Craft::createObject, attaching malicious behaviors or event handlers that execute code as the web user.
Weakness: CWE-94
Which versions are affected by CVE-2026-112772?
How do I fix CVE-2026-112772?
No fix has been published for CVE-2026-112772 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-2026-112772 being exploited?
There is no known exploitation of CVE-2026-112772 in the wild and no public exploit code.
Sources
Also known as GHSA-qm9x-rmcj-h2rc, GHSA-rvqf-xwq6-2q7c.