CVE-2025-35965
HIGH EPSS 23.3%
Published Apr 24, 20251y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published Apr 24, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
23.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-770
Affected Products 3
| Vendor | Product | Version | Range |
|---|---|---|---|
| mattermost | mattermost_server | * | ≥9.11.0 – <9.11.11 |
| mattermost | mattermost_server | * | ≥10.4.0 – <10.4.3 |
| mattermost | mattermost_server | 10.5.0 | any |
References 1
- mattermost.com https://mattermost.com/security-updates
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.