LowDRUPAL-CORE-2026-003BIT-drupal-2026-6367CVE-2026-6367GHSA-pw6f-3999-xp7g

DRUPAL-CORE-2026-003 in drupal/core

Published 15 Apr 2026 · Updated 10 Sept 2026

Affected package

Affected: >=11.3.0 <11.3.7
Fixed in: 11.3.7

Update to the fixed version for your release line, for example:composer require drupal/core:^11.3.7

Details

Drupal 11.3 comes with support for completing entity suggestions whilst adding a link to CKEditor 5.

The suggestions aren't sufficiently sanitized and a malicious user could trigger a stored cross site scripting attack against another user.

Is DRUPAL-CORE-2026-003 in any of your client repos?

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References

Linkwww.drupal.org/sa-core-2026-003

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.