CVEvulnerability

CVE-2024-1402

4.3 MEDIUM Published 2024-02-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-02-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weaknesses
CWE-400

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. 

Affected configurations

• mattermost mattermost server (<= 8.1.7) • mattermost mattermost server (>= 9.0.0 <= 9.1.4) • mattermost mattermost server (>= 9.2.0 <= 9.2.3)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References