Description
Mattermost Plugins versions <=11.4 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to validate incoming request size which allows an authenticated attacker to cause service disruption via the webhook endpoint. Mattermost Advisory ID: MMSA-2026-00589
INFO
Published Date :
2026-03-26T16:19:32.607Z
Last Modified :
2026-03-26T17:51:14.971Z
Source :
Mattermost
AFFECTED PRODUCTS
The following products are affected by CVE-2026-3116 vulnerability.
| Vendors | Products |
|---|---|
| Mattermost |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3116.
| URL | Resource |
|---|---|
| https://mattermost.com/security-updates |
|
CVSS Vulnerability Scoring System
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact