Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to enforce a request body size limit during CSRF validation of plugin requests which allows an authenticated user to exhaust server memory and cause a denial of service via a large request body sent to a plugin endpoint.. Mattermost Advisory ID: MMSA-2026-00775
Metrics
Affected Vendors & Products
References
| Link | Providers |
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| https://mattermost.com/security-updates |
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History
Wed, 07 Oct 2026 16:45:00 +0000
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Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
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Wed, 23 Sep 2026 16:30:00 +0000
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ssvc
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Tue, 22 Sep 2026 22:15:00 +0000
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Mattermost
Mattermost mattermost |
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Mattermost
Mattermost mattermost |
Tue, 22 Sep 2026 20:45:00 +0000
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| Description | Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to enforce a request body size limit during CSRF validation of plugin requests which allows an authenticated user to exhaust server memory and cause a denial of service via a large request body sent to a plugin endpoint.. Mattermost Advisory ID: MMSA-2026-00775 | |
| Title | Mattermost server missing request body size limit on plugin routes allows denial of service by an authenticated user | |
| Weaknesses | CWE-789 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2026-09-22T20:34:49.141Z
Updated: 2026-09-23T15:06:07.254Z
Reserved: 2026-09-22T20:00:26.276Z
Link: CVE-2026-96260
Updated: 2026-09-23T15:06:01.596Z
Status : Analyzed
Published: 2026-09-22T21:17:35.027
Modified: 2026-10-07T16:37:42.773
Link: CVE-2026-96260
No data.