[IT-SecNots] [Security-news] FlowDrop - Moderately critical - Access bypass - SA-CONTRIB-2026-067

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-067

Project: FlowDrop [1]
Date: 2026-July-01
Security risk: *Moderately critical* 12 ∕ 25
AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Uncommon [2]
Vulnerability: Access bypass

Affected versions: <1.6.0
CVE IDs: CVE-2026-58589
Description: 
This module enables you to test and run AI-driven workflows interactively
through a chat interface.

The module doesn't sufficiently enforce permissions on certain endpoints.
Attackers may be able to trigger workflow execution (incurring LLM spend and
tool side effects) or send messages into other user's sessions.

This vulnerability is mitigated by the fact that an attacker must have the
permission "View any session", which is not granted to anonymous or
authenticated users by default.

Solution: 
Install the latest version:

 * If you use the FlowDrop module for Drupal 11.x, upgrade to FlowDrop 1.6.0
   [3]

Driving a session now additionally requires the "Execute session workflow"
permission.

Reported By: 
 * Aincient Labs  (aincient labs) [4]

Fixed By: 
 * Shibin Das (d34dman) [5]

Coordinated By: 
 * Greg Knaddison (greggles) [6] of the Drupal Security Team
 * Neil Drumm (drumm) [7] of the Drupal Security Team
 * Juraj Nemec (poker10) [8] of the Drupal Security Team
 * Dave Long (longwave) [9] of the Drupal Security Team

Security
issue: 
https://git.drupalcode.org/security/3592076-flowdrop-security/-/work_items/1
[10]
------------------------------------------------------------------------------
Contribution record [11]

[1] https://www.drupal.org/project/flowdrop
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/flowdrop/releases/1.6.0
[4] https://www.drupal.org/u/aincient-labs
[5] https://www.drupal.org/u/d34dman
[6] https://www.drupal.org/u/greggles
[7] https://www.drupal.org/u/drumm
[8] https://www.drupal.org/u/poker10
[9] https://www.drupal.org/u/longwave
[10]  
https://git.drupalcode.org/security/3592076-flowdrop-security/-/work_items/1
[11]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3598233

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