PT-2026-50608 · Packagist · Drupal Core
Published
2026-06-17
·
Updated
2026-06-18
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CVE-2026-55806
None
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Name of the Vulnerable Software and Affected Versions
Drupal core (affected versions not specified)
Description
The
rebuild.php front controller, used to clear caches and rebuild the container when a site is in an unexpected condition, fails to correctly validate the Host header against trusted host patterns. This flaw can lead to cache poisoning, where a cache is filled with a malicious response, or an open redirect, which sends users to an attacker-controlled domain.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Related Identifiers
Affected Products
Drupal Core