{"schema_version":"1.7.5","id":"GHSA-689c-xq7x-xjwf","published":"2025-04-24T09:30:33Z","modified":"2026-04-01T17:33:16.607946Z","aliases":["CVE-2025-35965","GO-2025-3643"],"related":["CGA-2rx5-6wq7-888g"],"summary":"Mattermost Playbooks fails to validate the uniqueness and quantity of task actions","details":"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.","affected":[{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.0-20250218121836-2b5275d87136"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}},{"package":{"name":"github.com/mattermost/mattermost-plugin-playbooks","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-playbooks"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"}]}],"database_specific":{"last_known_affected_version_range":"< 2.1.1","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.4.0"}]}],"database_specific":{"last_known_affected_version_range":"< 10.4.3","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.5.0"}]}],"database_specific":{"last_known_affected_version_range":"< 10.5.1","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.11.0"}]}],"database_specific":{"last_known_affected_version_range":"< 9.11.11","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}},{"package":{"name":"github.com/mattermost/mattermost-plugin-playbooks","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-playbooks"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.41.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-689c-xq7x-xjwf/GHSA-689c-xq7x-xjwf.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-35965"},{"type":"WEB","url":"https://github.com/mattermost/mattermost-plugin-playbooks/commit/bf2633dad09f5768ce2bea4b7c5ffb74050052a8"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost-plugin-playbooks"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-770"],"github_reviewed":true,"github_reviewed_at":"2025-04-24T16:09:18Z","nvd_published_at":"2025-04-24T07:15:31Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}