CVE-2026-109162 TYPO3 CMS - Security Misconfiguration in Form Framework
Attackers can access uploaded files publicly if custom save paths are configured, bypassing intended storage restrictions in TYPO3 CMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109162?
CVE-2026-109162 is a medium-severity vulnerability in TYPO3 CMS, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Forms using FileUpload or ImageUpload elements with a custom saveToFileMount configured stored uploaded files in the default storage folder 1:/user_upload/ instead of the configured destination. This could cause uploaded files to end up in a publicly accessible storage even though a restricted, non-public storage had been configured. Files stored this way are served directly, without the access checks applied to non-public storages. Forms that use the default value for saveToFileMount are not affected. This issue affects TYPO3 CMS versions 14.0.0-14.3.8.
Which versions are affected by CVE-2026-109162?
How do I fix CVE-2026-109162?
No fix has been published for CVE-2026-109162 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109162 being exploited?
There is no known exploitation of CVE-2026-109162 in the wild and no public exploit code.