View online: https://www.drupal.org/sa-core-2023-002 Project: Drupal core [1] Date: 2023-March-15 Security risk: *Moderately critical* 14∕25 AC:None/A:None/CI:Some/II:None/E:Theoretical/TD:Default [2] Vulnerability: Information Disclosure Affected versions: >=8.0.0 <9.4.12 || >=9.5.0 <9.5.5 || >=10.0.0 <10.0.5 Description:  The Media module does not properly check entity access in some circumstances. This may result in users seeing thumbnails of media items they do not have access to, including for private files. This release was coordinated with SA-CONTRIB-2023-010 [3]. This advisory is not covered by Drupal Steward [4]. Solution:  Install the latest version: * If you are using Drupal 10.0, update to Drupal 10.0.5 [5]. * If you are using Drupal 9.5, update to Drupal 9.5.5 [6]. * If you are using Drupal 9.4, update to Drupal 9.4.12 [7]. All versions of Drupal 9 prior to 9.4.x are end-of-life and do not receive security coverage. Note that Drupal 8 has reached its end of life [8]. Drupal 7 core does not include the Media Library module and therefore is not affected. Reported By:  * James Williams [9] * Dan Flanagan [10] Fixed By:  * Lee Rowlands [11] of the Drupal Security Team * James Williams [12] * Jess [13] of the Drupal Security Team * Dave Long [14] of the Drupal Security Team * Dan Flanagan [15] * Jen Lampton [16] Provisional Member of the Drupal Security Team * Joseph Zhao [17] Provisional Member of the Drupal Security Team * Benji Fisher [18] of the Drupal Security Team [1] https://www.drupal.org/project/drupal [2] https://www.drupal.org/security-team/risk-levels [3] https://www.drupal.org/sa-contrib-2023-010 [4] https://www.drupal.org/steward [5] https://www.drupal.org/project/drupal/releases/10.0.5 [6] https://www.drupal.org/project/drupal/releases/9.5.5 [7] https://www.drupal.org/project/drupal/releases/9.4.12 [8] https://www.drupal.org/psa-2021-06-29 [9] https://www.drupal.org/user/592268 [10] https://www.drupal.org/user/3615359 [11] https://www.drupal.org/user/395439 [12] https://www.drupal.org/user/592268 [13] https://www.drupal.org/user/65776 [14] https://www.drupal.org/user/246492 [15] https://www.drupal.org/user/3615359 [16] https://www.drupal.org/user/85586 [17] https://www.drupal.org/user/1987218 [18] https://www.drupal.org/user/683300