CVE-2026-109162 Details
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.
A security misconfiguration vulnerability has been identified in TYPO3 CMS versions 14.0.0 through 14.3.8. The issue arises in the Form Framework when using FileUpload or ImageUpload elements with a custom saveToFileMount configuration. Uploaded files are incorrectly stored in the default directory, 1:/user_upload/, instead of the specified location. This misplacement can lead to files being accessible publicly, bypassing the intended privacy settings. The vulnerability does not affect forms that use the default saveToFileMount value.
Update TYPO3 CMS to version 14.3.9, which addresses this vulnerability by ensuring that the saveToFileMount configuration is properly respected during file uploads.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 13, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/TYPO3/typo3/commit/cc3e8e28b0e830aaf6ad857272f3f2dc3c4ede12 | TYPO3 | Source CodeVendor |
| https://github.com/TYPO3/typo3/commit/f536f75c6bd3456165e4200e5df1b236ddeae3b0 | TYPO3 | Source CodeVendor |
| https://news.typo3.com/security/advisory/typo3-core-sa-2026-024 | TYPO3 | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-552 | Files or Directories Accessible to External Parties | TYPO3 |
| CWE-696 | Incorrect Behavior Order | TYPO3 |
Affected Products
| Product | Versions |
|---|---|
| TYPO3 | >= 14.0.0, <= 14.3.8 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | CVE Modified | TYPO3 |
| Oct 13, 2026 | New CVE Received | TYPO3 |