CVE-2026-23493
Pimcore ENV Variables and Cookie Informations are exposed in http_error_log
Impact
### 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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | pimcore/pimcore | >= 12.0.0-RC1, <= 12.3 | 12.3.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pimcore | Pimcore | before 11.5.14 from 12.0.0 before 12.3.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/pimcore/pimcore/commit/002ec7d5f84973819236796e5b314703b58e8601
- https://github.com/pimcore/pimcore/pull/18918
- https://github.com/pimcore/pimcore/releases/tag/v11.5.14
- https://github.com/pimcore/pimcore/releases/tag/v12.3.1
- https://github.com/pimcore/pimcore/security/advisories/GHSA-q433-j342-rp9h
- https://github.com/advisories/GHSA-q433-j342-rp9h
- https://nvd.nist.gov/vuln/detail/CVE-2026-23493