Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to validate the uniqueness and quantity of task actions within the UpdateRunTaskActions GraphQL operation, which allows an attacker to create task items containing an excessive number of actions triggered by specific posts, overloading the server and leading to a denial-of-service (DoS) condition.
Metrics
Affected Vendors & Products
References
| Link | Providers |
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| https://mattermost.com/security-updates |
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History
Mon, 29 Sep 2025 21:15:00 +0000
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| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:mattermost_server:10.5.0:-:*:*:*:*:*:* |
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| Vendors & Products |
Mattermost mattermost Server
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Thu, 24 Apr 2025 13:15:00 +0000
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| Metrics |
ssvc
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Thu, 24 Apr 2025 07:00:00 +0000
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| Description | Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to validate the uniqueness and quantity of task actions within the UpdateRunTaskActions GraphQL operation, which allows an attacker to create task items containing an excessive number of actions triggered by specific posts, overloading the server and leading to a denial-of-service (DoS) condition. | |
| Title | DoS in Mattermost Playbooks via Excessive Task Actions | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2025-04-24T06:49:22.669Z
Updated: 2025-04-24T13:06:59.413Z
Reserved: 2025-04-22T11:38:20.801Z
Link: CVE-2025-35965
Updated: 2025-04-24T13:04:02.271Z
Status : Analyzed
Published: 2025-04-24T07:15:31.280
Modified: 2025-09-29T21:10:29.280
Link: CVE-2025-35965
No data.