[IT-SecNots] [Security-news] Smart Content - Moderately critical - Access bypass - SA-CONTRIB-2026-190

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-190

Project: Smart Content [1]
Project machine name: smart_content
Date: 2026-September-23
Security risk: *Moderately critical* 13 ∕ 25
AC:Basic/A:None/CI:Some/II:None/E:Theoretical/TD:All [2]
Vulnerability: Access bypass

Affected versions: <3.2.1
CVE IDs: CVE-2026-96386
Description: 
This module enables you to personalize content for anonymous and
authenticated users by showing different blocks to visitors based on
client-side conditions.

The Smart Content Block submodule doesn't sufficiently check block access
when it renders the blocks of a "Display Blocks" reaction through the
module's AJAX endpoint.

This vulnerability is mitigated by the fact that a site must have placed a
block whose access is restricted to certain users inside a Display Blocks
reaction. Sites that only use Views blocks in reactions are not affected,
because Views re-checks access when the view is executed.

Solution: 
Install the latest version:

 * Upgrade to Smart Content 3.2.1 [3].

Reported By: 
 * Tin Nguyen Huu (s4m0y3d) [4]

Fixed By: 
 * Michael Lander (michaellander) [5]
 * Tin Nguyen Huu (s4m0y3d) [6]

Coordinated By: 
 * Swan Kalata (akalata) [7] of the Drupal Security Team
 * Greg Knaddison (greggles) [8] of the Drupal Security Team
 * Jess  (xjm) [9] of the Drupal Security Team

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Contribution record [10]

[1] https://www.drupal.org/project/smart_content
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/smart_content/releases/3.2.1
[4] https://www.drupal.org/u/s4m0y3d
[5] https://www.drupal.org/u/michaellander
[6] https://www.drupal.org/u/s4m0y3d
[7] https://www.drupal.org/u/akalata
[8] https://www.drupal.org/u/greggles
[9] https://www.drupal.org/u/xjm
[10]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3623060

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