Mattermost versions 9.10.x < 9.10.2, 9.11.x < 9.11.1 and 9.5.x < 9.5.9 fail to prevent detailed error messages from being displayed in Playbooks which allows an attacker to generate a large response and cause an amplified GraphQL response which in turn could cause the application to crash by sending a specially crafted request to Playbooks.
Publication date: Tue, 29 Oct 2024 09:15:00 +0000