CVE-2025-35965
Last modified
CVE-2025-35965 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | >= 9.11.0, < 9.11.11 |
| Mattermost | Mattermost Server | >= 10.4.0, < 10.4.3 |
| Mattermost | Mattermost Server | 10.5.0 |
References
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-35965?
How severe is CVE-2025-35965?
How do I fix CVE-2025-35965?
Are you affected by CVE-2025-35965?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST