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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | pimcore/pimcore | >= 12.0.0-RC1, < 12.3.1, < 11.5.14 | 12.3.1, 11.5.14 |
References
- https://github.com/pimcore/pimcore/security/advisories/GHSA-q433-j342-rp9h
- https://nvd.nist.gov/vuln/detail/CVE-2026-23493
- https://github.com/pimcore/pimcore/pull/18918
- https://github.com/pimcore/pimcore/commit/002ec7d5f84973819236796e5b314703b58e8601
- https://github.com/pimcore/pimcore
- https://github.com/pimcore/pimcore/releases/tag/v11.5.14
- https://github.com/pimcore/pimcore/releases/tag/v12.3.1
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L- Weakness (CWE)
CWE-532- Platform
- Composer
- Package
pimcore/pimcore- Disclosed
- 15.01.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q433-j342-rp9h - CC BY 4.0
Vulnerability history: pimcore/pimcore
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 135
- First → latest
- 12.2019 09.2026
- Without a fix
- 3
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 40
- Medium 90
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 11
- 2022: 43
- 2023: 59
- 2024: 3
- 2025: 2
- 2026: 16
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Pimcore ENV Variables and Cookie Informations are exposed in http_error_log this entry
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