Information Exposure Affecting contao/core-bundle package, versions >=4.13.0, <5.3.47>=5.4.0, <5.7.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-CONTAOCOREBUNDLE-17971343
- published14 Jul 2026
- disclosed14 Jul 2026
- creditUnknown
Introduced: 14 Jul 2026
NewCVE-2026-55824 (opens in a new tab)How to fix?
Upgrade contao/core-bundle to version 5.3.47, 5.7.7 or higher.
Overview
contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain.
Affected versions of this package are vulnerable to Information Exposure via the crawler that tries to prevent confidential HTTP client options from being sent to external domains by creating a scoped client: full options for root page origins, cleaned options for everything else. The cleaner removes Cookie and Authorization headers, but it removes the non-Symfony option names basic_auth and bearer_auth instead of Symfony HttpClient's real auth_basic and auth_bearer options.