Vulnerability · Published May 19, 2026 · Assigned by drupal
CVE-2026-6366Drupal core - Moderately critical - Gadget Chain - SA-CORE-2026-002
Medium 6.6
In plain English
A medium-severity security flaw in Drupal core from Drupal. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.6Medium
Exploit odds (30 days)0.4%top 65.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | drupal/core | 10.5.9, 10.6.7, 11.2.11, 11.3.7 | DRUPAL-CORE-2026-002 |
| Packagist | drupal/core | 10.5.9 | GHSA-xmjc-63pr-2mpg |
| Packagist | drupal/core | 10.6.7 | GHSA-xmjc-63pr-2mpg |
| Packagist | drupal/core | 11.2.11 | GHSA-xmjc-63pr-2mpg |
| Packagist | drupal/core | 11.3.7 | GHSA-xmjc-63pr-2mpg |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Drupal | Drupal core | 8.0.0 – before 10.5.910.6.0 – before 10.6.711.0.0 – before 11.2.1111.3.0 – before 11.3.7 |
Weakness: CWE-915 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H