Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591
References
| Link | Resource |
|---|---|
| https://mattermost.com/security-updates | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
18 May 2026, 19:06
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| References | () https://mattermost.com/security-updates - Vendor Advisory | |
| First Time |
Mattermost mattermost Server
Mattermost |
18 May 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-18 09:16
Updated : 2026-05-18 19:06
NVD link : CVE-2026-6343
Mitre link : CVE-2026-6343
CVE.ORG link : CVE-2026-6343
JSON object : View
Products Affected
mattermost
- mattermost_server
CWE
CWE-863
Incorrect Authorization