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Mattermost fails to limit the number of active sessions

Moderate severity GitHub Reviewed Published Apr 26, 2024 to the GitHub Advisory Database • Updated Apr 26, 2024

Package

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

Affected versions

>= 9.6.0-rc1, <= 9.6.0
>= 9.5.0, <= 9.5.2
>= 9.4.0, <= 9.4.4
>= 8.1.0, <= 8.1.11

Patched versions

9.6.1
9.5.3
9.4.5
8.1.12

Description

Mattermost versions 8.1.x before 8.1.12, 9.6.x before 9.6.1, 9.5.x before 9.5.3, 9.4.x before 9.4.5 fail to limit the number of active sessions, which allows an authenticated attacker to crash the server via repeated requests to the getSessions API after flooding the sessions table.

References

Published by the National Vulnerability Database Apr 26, 2024
Published to the GitHub Advisory Database Apr 26, 2024
Reviewed Apr 26, 2024
Last updated Apr 26, 2024

Severity

Moderate
4.3
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2024-4183

GHSA ID

GHSA-wj37-mpq9-xrcm

Source code

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