CVE-2023-5333

MEDIUM

Mattermost < 7.8.11 - Denial of Service via User ID Deduplication Bypass

Title source: llm
STIX 2.1

Description

Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs.

References (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0012
EPSS Percentile 30.2%
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 (1)
mattermost/mattermost_server < 7.8.11
Published Oct 09, 2023
Tracked Since Feb 18, 2026