PT-2026-42749 · Mattermost · Mattermost
Thecybertantrik
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Published
2026-05-22
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Updated
2026-05-22
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CVE-2026-5308
CVSS v3.1
4.9
Medium
| Vector | AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to enforce request body size limits on plugin HTTP endpoints which allows an attacker to cause a denial of service via crafted oversized HTTP requests.. Mattermost Advisory ID: MMSA-2026-00646
Fix
Resource Exhaustion
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost