Untriaged
Permalink
CVE-2026-3590
6.5 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): Low (L)
- Integrity (I): Low (L)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): Low (L)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
Race Condition in Guest Magic Link Authentication Allows Token Reuse
Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent requests.. Mattermost Advisory ID: MMSA-2026-00624
References
-
MMSA-2026-00624 vendor-advisory
Affected products
Mattermost
- =<10.11.12
- ==11.3.3
- =<11.4.2
- =<11.5.0
- ==11.4.3
- ==11.5.1
- =<11.3.2
- ==11.6.0
- ==10.11.13
Matching in nixpkgs
pkgs.mattermost
Open source platform for secure collaboration across the entire software development lifecycle
pkgs.mattermostLatest
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
-
@mgdelacroix Miguel de la Cruz <mgdelacroix@gmail.com>
-
@ryantm Ryan Mulligan <ryan@ryantm.com>
-
@numinit Morgan Jones <me+nixpkgs@numin.it>
-
@jokogr Ioannis Koutras <ioannis.koutras@gmail.com>
-
@liff Olli Helenius <liff@iki.fi>
-
@globin Robin Gloster <mail@glob.in>