mattermost/mattermost-plugin-playbooks · Security
Mattermost Playbooks fails to validate the uniqueness and quantity of task actions
- GHSA ID
- GHSA-689c-xq7x-xjwf
- CVE ID
- CVE-2025-35965
- Severity
- medium
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
CWEs
- CWE-770 · Allocation of Resources Without Limits or Throttling
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-35965 ↗
- https://mattermost.com/security-updates ↗
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/bf2633dad09f5768ce2bea4b7c5ffb74050052a8 ↗
- https://github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a ↗
- https://github.com/advisories/GHSA-689c-xq7x-xjwf ↗