Headline
GHSA-q433-j342-rp9h: Pimcore ENV Variables and Cookie Informations are exposed in http_error_log
Summary
The http_error_log 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.
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2026-23493
Pimcore ENV Variables and Cookie Informations are exposed in http_error_log
High severity GitHub Reviewed Published Jan 15, 2026 in pimcore/pimcore • Updated Jan 15, 2026
Package
composer pimcore/pimcore (Composer)
Affected versions
>= 12.0.0-RC1, <= 12.3
<= 11.5.13
Patched versions
12.3.1
11.5.14
Description
Published to the GitHub Advisory Database
Jan 15, 2026
Last updated
Jan 15, 2026
EPSS score