Bug 2480041 (CVE-2026-6366)

Summary: CVE-2026-6366 drupal: Drupal core: Object Injection vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Drupal core. This vulnerability, categorized as an Improperly Controlled Modification of Dynamically-Determined Object Attributes, allows for object injection. An attacker could exploit this to potentially manipulate application logic or achieve other impacts depending on the application's use of deserialized objects.
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Description OSIDB Bzimport 2026-05-19 23:01:33 UTC 
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.

This issue affects Drupal core: from 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.