🛡️ CVE-2023-5196
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-400 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.

Details

Severity Medium
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2023-09-29
Updated 2026-06-08
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/mattermost/mattermost-server/v6
github.com/mattermost/mattermost/server/v8
mattermost 8.1.0 8.1.1

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