GHSA-f499-j7p4-wm44

GHSA-f499-j7p4-wm44 PUBLISHED CVSS 4.900000095367432 MEDIUM

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

Risk Scores

CVSS 3.1

4.900000095367432

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Timeline

Mar 26, 2026 CVE Published
Apr 10, 2026 Security Advisory

References

https://nvd.nist.gov/vuln/detail/CVE-2026-3116 advisory
https://mattermost.com/security-updates url

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