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CVE-2026-23493 — Vulnerability in pimcore/pimcore — CVE Details

HIGH

Pimcore ENV Variables and Cookie Informations are exposed in http_error_log

Published January 15, 2026Updated February 3, 2026Source: osv

Summary

### 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.

Advisory Timeline

  • First published January 15, 2026 (270 days ago).
  • Last revised February 3, 2026 — 18 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update pimcore/pimcore to 11.5.14 or later
composer require "pimcore/pimcore:^11.5.14"
Composer
Update pimcore/pimcore to 12.3.1 or later
composer require "pimcore/pimcore:^12.3.1"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
pimcore/pimcore
packagist
10.0.8, 2.2.0, 2.2.1, 2.2.2 (+290 more)11.5.14
pimcore/pimcore
packagist
v12.0.0, v12.0.0-RC1, v12.0.0-RC2, v12.0.1 (+15 more)12.3.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.6 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Frequently Asked Questions

What is CVE-2026-23493?
Pimcore ENV Variables and Cookie Informations are exposed in http_error_log This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.6/10).
How do I check if my project is affected by CVE-2026-23493?
CVE-2026-23493 affects pimcore/pimcore. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-23493 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.6

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-q433-j342-rp9h

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