[IT-SecNots] [Security-news] Diff - Moderately critical - Access bypass - SA-CONTRIB-2026-096

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-096

Project: Diff [1]
Date: 2026-August-12
Security risk: *Moderately critical* 13 ∕ 25
AC:Basic/A:None/CI:Some/II:None/E:Theoretical/TD:All [2]
Vulnerability: Access bypass

Affected versions: <2.0.1 || >=2.1.0 <2.1.1
CVE IDs: CVE-2026-73478
Description: 
This module enables you to view the differences between revisions on any
entity type.

The module doesn't sufficiently restrict access to non-node entity revision
diffs.

This vulnerability is mitigated by the fact that an attacker must have a role
with the permission view the entity.

Solution: 
Install the latest version:

 * If you use the Diff module, upgrade to Diff 2.1.1 [3] or Diff 2.0.1 [4]

Reported By: 
 * Alexei Rayu (alexrayu) [5]

Fixed By: 
 * Adam Bramley (acbramley) [6]
 * Derek Wright (dww) [7]
 * Lee Rowlands (larowlan) [8] of the Drupal Security Team

Coordinated By: 
 * Swan Kalata (akalata) [9] of the Drupal Security Team
 * Greg Knaddison (greggles) [10] of the Drupal Security Team
 * Lee Rowlands (larowlan) [11] of the Drupal Security Team

------------------------------------------------------------------------------
Contribution record [12]

[1] https://www.drupal.org/project/diff
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/diff/releases/2.1.1
[4] https://www.drupal.org/project/diff/releases/2.0.1
[5] https://www.drupal.org/u/alexrayu
[6] https://www.drupal.org/u/acbramley
[7] https://www.drupal.org/u/dww
[8] https://www.drupal.org/u/larowlan
[9] https://www.drupal.org/u/akalata
[10] https://www.drupal.org/u/greggles
[11] https://www.drupal.org/u/larowlan
[12]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3616189

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