CVE-2023-3614

MEDIUM

Mattermost < 7.8.7 - Denial of Service via Malicious GIF Image File

Title source: llm

Description

Mattermost fails to properly validate a gif image file, allowing an attacker to consume a significant amount of server resources, making the server unresponsive for an extended period of time by linking to specially crafted image file.

References (1)

Core 1

Core References

Vendor Advisory

https://mattermost.com/security-updates

Scores

CVSS v3 4.3

EPSS 0.0009

EPSS Percentile 25.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-400

Status published

Products (1)

mattermost/mattermost_server < 7.8.7

Published Jul 17, 2023

Tracked Since Feb 18, 2026