---
title: "TYPO3 Exception 1294586448"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1294586448"
source: "Exceptions/1294586448.rst"
rendered: "2026-10-01T16:20:50+00:00"
---

# TYPO3 Exception 1294586448 {#typo3-exception-1294586448}

> [!NOTE]
> Below, the TYPO3 community may have provided additional information or
> solutions for this exception. However, these may or may not apply to your
> particular case. If you can provide more information, you should come back
> here and add your experience and solution steps to this issue once you have
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>
> General TYPO3 troubleshooting tips can be found in the *Troubleshooting*
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> [TYPO3 Questions category on talk.typo3.org](https://talk.typo3.org/c/typo3-questions/).
>
> To add your experience, click "Edit on GitHub" above and follow the
> ["Edit on GitHub" workflow](https://docs.typo3.org/m/typo3/docs-how-to-document/main/en-us/Howto/EditOnGithub.html#docs-contribute-github-method).
> Also check out
> [our tip on Coding Style and reST](https://docs.typo3.org/permalink/t3exceptions:tip-about-rest-coding-style).

## You don't have access to this module. {#you-don-t-have-access-to-this-module}

When an editor (a backend user that is not an administrator) tries to
access a module to where they have no access to an exception like this
will be thrown:

```
Core: Exception handler (WEB):
Uncaught TYPO3 Exception: #1294586448: Access Error: You don't have access to this module.
RuntimeException thrown in file /var/www/html/vendor/typo3/cms/typo3/sysext/core/Classes/Authentication/BackendUserAuthentication.php in line 448.

```

In the media extension this happens for example if the access to the modules is not
configured properly.

Check the following access: A backend user with access to **File>Media**
must also granted to **User tools > Media Extra (hidden module, required
for non admin)**.

|Media Extra Module in Access List for Backend usergroup.png|