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Mattermost Uncontrolled Resource Consumption vulnerability

Moderate severity GitHub Reviewed Published Sep 29, 2023 to the GitHub Advisory Database • Updated Nov 11, 2023

Package

gomod github.com/mattermost/mattermost-server/v6 (Go)

Affected versions

< 7.8.10

Patched versions

7.8.10
gomod github.com/mattermost/mattermost/server/v8 (Go)
= 8.1.0
>= 8.0.0, < 8.0.2
8.1.1
8.0.2

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.

References

Published by the National Vulnerability Database Sep 29, 2023
Published to the GitHub Advisory Database Sep 29, 2023
Reviewed Sep 29, 2023
Last updated Nov 11, 2023

Severity

Moderate
6.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2023-5196

GHSA ID

GHSA-33r7-wjfc-7w98

Source code

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