{"id":"CVE-2025-35965","state":"PUBLISHED","title":"DoS in Mattermost Playbooks via Excessive Task Actions","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.","publishedAt":"2025-04-24T06:49:22.669Z","updatedAt":"2025-04-24T13:06:59.413Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.4.0","status":"affected","lessThanOrEqual":"10.4.2","versionType":"semver"},{"version":"10.5.0","status":"affected"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.10","versionType":"semver"},{"version":"10.6.0","status":"unaffected"},{"version":"10.4.3","status":"unaffected"},{"version":"10.5.1","status":"unaffected"},{"version":"9.11.11","status":"unaffected"}]}],"references":["https://mattermost.com/security-updates"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/35xxx/CVE-2025-35965.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-35965","state":"PUBLISHED","datePublished":"2025-04-24T06:49:22.669Z","dateUpdated":"2025-04-24T13:06:59.413Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2025-04-22T11:38:20.801Z"},"containers":{"cna":{"title":"DoS in Mattermost Playbooks via Excessive Task Actions","descriptions":[{"lang":"en","value":"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":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"10.4.0","status":"affected","lessThanOrEqual":"10.4.2","versionType":"semver"},{"version":"10.5.0","status":"affected"},{"version":"9.11.0","status":"affected","lessThanOrEqual":"9.11.10","versionType":"semver"},{"version":"10.6.0","status":"unaffected"},{"version":"10.4.3","status":"unaffected"},{"version":"10.5.1","status":"unaffected"},{"version":"9.11.11","status":"unaffected"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateUpdated":"2025-04-24T06:49:22.669Z"},"credits":[{"lang":"en","type":"finder","value":"vultza (vultza)"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.11 or higher. Alternatively, update the Mattermost Playbooks plugin to version 2.1.1 or higher.&nbsp;</p>"}],"value":"Update Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.11 or higher. Alternatively, update the Mattermost Playbooks plugin to version 2.1.1 or higher."}],"source":{"advisory":"MMSA-2024-00391","defect":["https://mattermost.atlassian.net/browse/MM-61243"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-24T12:54:06.620657Z","id":"CVE-2025-35965","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-24T13:06:59.413Z"}}]}}}