DRUPAL-CORE-2025-006 in drupal/core
Published 12 Nov 2025 · Updated 10 Dec 2025
Affected package
- Affected
- >=8.0.0 <10.4.9 · >=10.5.0 <10.5.6 · >=11.0.0 <11.1.9 · >=11.2.0 <11.2.8
- Fixed in
- 10.4.9, 10.5.6, 11.1.9, 11.2.8
composer require drupal/core:^11.2.8Details
Drupal core contains a chain of methods that is exploitable when an insecure deserialization vulnerability exists on the site. This so-called "gadget chain" presents no direct threat, but is a vector that can be used to achieve remote code execution if the application deserializes untrusted data due to another vulnerability.
It is not directly exploitable.
This issue is mitigated by the fact that in order for it to be exploitable, a separate vulnerability must be present to allow an attacker to pass unsafe input to unserialize(). There are no such known exploits in Drupal core.
Is DRUPAL-CORE-2025-006 in any of your client repos?
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References
Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.