4.3 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): Low (L)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): Low (L)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
Information Disclosure via WebSocket Event When Deleting Unrevealed Burn on Read Posts
Mattermost versions 11.3.x <= 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579
References
-
MMSA-2026-00579 vendor-advisory
Affected products
- =<11.3.0
- ==11.4.0
- ==11.3.1
Matching in nixpkgs
pkgs.mattermost
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle
pkgs.mattermostLatest
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle
pkgs.mattermost-desktop
Mattermost Desktop client
pkgs.python312Packages.mattermostdriver
Python Mattermost Driver
pkgs.python313Packages.mattermostdriver
Python Mattermost Driver
pkgs.python314Packages.mattermostdriver
Python Mattermost Driver
Package maintainers
-
@numinit Morgan Jones <me+nixpkgs@numin.it>
-
@mgdelacroix Miguel de la Cruz <mgdelacroix@gmail.com>
-
@fsagbuya Florian Agbuya <fa@m-labs.ph>
-
@Kranzes Ilan Joselevich <personal@ilanjoselevich.com>
-
@ryantm Ryan Mulligan <ryan@ryantm.com>
-
@liff Olli Helenius <liff@iki.fi>
-
@jokogr Ioannis Koutras <ioannis.koutras@gmail.com>
-
@globin Robin Gloster <mail@glob.in>