CVE-2023-2831

MEDIUM

Mattermost 7.1.0-7.1.8 - Denial of Service via Markdown String Unescaping

Title source: llm
STIX 2.1

Description

Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.

References (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0016
EPSS Percentile 36.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 (2)
mattermost/mattermost 7.10.0
mattermost/mattermost 7.1.0 - 7.1.9
Published Jun 16, 2023
Tracked Since Feb 18, 2026