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CVE-2026-3116
Published: Mar 26, 2026
Modified: Mar 26, 2026
PUBLISHED
CVSS v3.1
4.9
MEDIUM
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
| Vendor | Product | Versions |
|---|---|---|
Mattermost | Mattermost | affected 0 - <= 11.0.4affected 0 - <= 11.1.3affected 0 - <= 11.3.2affected 0 - <= 10.11.11unaffected 11.5.0+4 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
References
MMSA-2026-00589
vendor-advisory
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