CVE-2026-3116
4.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Summary
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
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 0 <= 11.0.4 | affected |
| Mattermost | Mattermost | 0 <= 11.1.3 | affected |
| Mattermost | Mattermost | 0 <= 11.3.2 | affected |
| Mattermost | Mattermost | 0 <= 10.11.11 | affected |
| Mattermost | Mattermost | 11.5.0 | unaffected |
| Mattermost | Mattermost | 11.4.1 | unaffected |
| Mattermost | Mattermost | 11.3.2 | unaffected |
| Mattermost | Mattermost | 11.2.4 | unaffected |
| Mattermost | Mattermost | 10.11.12 | unaffected |
Weaknesses
- CWE-400: CWE-400 Uncontrolled Resource Consumption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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