{"id":"BIT-mattermost-2024-1402","details":"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.","aliases":["CVE-2024-1402","GHSA-32h7-7j94-8fc2","GO-2024-2541"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T10:56:11.998Z","database_specific":{"cpes":["cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-1402"}],"affected":[{"package":{"name":"mattermost","ecosystem":"Bitnami","purl":"pkg:bitnami/mattermost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.6.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mattermost/BIT-mattermost-2024-1402.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"}]}],"schema_version":"1.7.3"}