CVE-2026-23493

Summary

The httperrorlog file stores the $COOKIE and $SERVER variables, which means sensitive information such as database passwords, cookie session data, and other details can be accessed or recovered through the Pimcore backend.

Details

It’s better to remove both lines, as this information makes little sense in this context anyway.

https://github.com/pimcore/pimcore/blob/12.x/bundles/SeoBundle/src/EventListener/ResponseExceptionListener.php#L92

https://github.com/pimcore/pimcore/blob/12.x/bundles/SeoBundle/src/EventListener/ResponseExceptionListener.php#L93

PoC

In the Pimcore backend, navigate to "Search Engine Optimization" and click on "HTTP Errors." Double-click on an entry to view its details. Here, you may find sensitive data exposed.

Impact

Pimcore backend users can access sensitive environment variables, potentially exposing critical information.