{"id":"CVE-2024-1402","state":"PUBLISHED","title":"Denial of service in mattermost mobile apps and server via emoji reactions","description":"Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. \n\n","publishedAt":"2024-02-09T15:09:18.157Z","updatedAt":"2024-08-01T18:40:20.579Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","source":"Mattermost"},"assigner":"Mattermost","products":["Mattermost Mattermost"],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"8.1.7","versionType":"semver"},{"version":"0","status":"affected","lessThanOrEqual":"9.1.4","versionType":"semver"},{"version":"0","status":"affected","lessThanOrEqual":"9.2.3","versionType":"semver"},{"version":"9.3.0","status":"unaffected"},{"version":"9.2.4","status":"unaffected"},{"version":"9.1.5","status":"unaffected"},{"version":"8.1.8","status":"unaffected"}]}],"references":["https://mattermost.com/security-updates"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:06:59.846Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/1xxx/CVE-2024-1402.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-1402","state":"PUBLISHED","datePublished":"2024-02-09T15:09:18.157Z","dateUpdated":"2024-08-01T18:40:20.579Z","assignerShortName":"Mattermost","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateReserved":"2024-02-09T14:53:28.621Z"},"containers":{"cna":{"title":"Denial of service in mattermost mobile apps and server via emoji reactions","descriptions":[{"lang":"en","value":"Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. \n\n"}],"affected":[{"vendor":"Mattermost","product":"Mattermost","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"8.1.7","versionType":"semver"},{"version":"0","status":"affected","lessThanOrEqual":"9.1.4","versionType":"semver"},{"version":"0","status":"affected","lessThanOrEqual":"9.2.3","versionType":"semver"},{"version":"9.3.0","status":"unaffected"},{"version":"9.2.4","status":"unaffected"},{"version":"9.1.5","status":"unaffected"},{"version":"8.1.8","status":"unaffected"}]}],"references":[{"url":"https://mattermost.com/security-updates"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"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:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Mattermost","orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","dateUpdated":"2024-05-30T12:07:15.141Z"},"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Gian Klug (coderion)"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost Server to versions 9.3.0, 9.2.4, 9.1.5, 8.1.8 or higher.</p>"}],"value":"Update Mattermost Server to versions 9.3.0, 9.2.4, 9.1.5, 8.1.8 or higher.\n\n"}],"source":{"advisory":"MMSA-2023-00276","defect":["https://mattermost.atlassian.net/browse/MM-55142"],"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-1402","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-22T17:55:23.358517Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T18:00:45.030Z"}},{"title":"CVE Program Container","references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T18:40:20.579Z"}}]}}}