AUGUST 4, 2026
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Case File

CVE-2024-1402

MEDIUM · CVSS 4.3 EPSS 0.52%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-02-09 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. See the original NVD description below for full technical details.

CVE
CVE-2024-1402
Severity
MEDIUM
CVSS
4.3
EPSS
0.52%

Original NVD 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. 

Related CVEs

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