CVE-2024-1402: Uncontrolled Resource Consumption
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.
References
- github.com/advisories/GHSA-32h7-7j94-8fc2
- github.com/mattermost/mattermost/commit/64cb0ca8af2dbda1afcddd1604460591a4799b81
- github.com/mattermost/mattermost/commit/6d2440de9fd774b67e65e3aac4ab8b6ef9aba2d8
- github.com/mattermost/mattermost/commit/81190e2da128a6985914ea7023a69ac400513fc4
- mattermost.com/security-updates
- nvd.nist.gov/vuln/detail/CVE-2024-1402
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