SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost-server/v5, github.com/mattermost/mattermost-server/v6, github.com/mattermost/mattermost/server/v8 (GHSA-vvpg-55p7-5h8w)

medium Tenable Self-Hosted Container Security Plugin ID 419556

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly restrict channel creation which allows
a malicious remote to create arbitrary channels, when shared channels were enabled. (CVE-2024-39837)

See Also

https://github.com/advisories/GHSA-vvpg-55p7-5h8w

Plugin Details

Severity: Medium

ID: 419556

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.51

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2024-39837

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/1/2024

Vulnerability Publication Date: 8/1/2024

Reference Information

CVE: CVE-2024-39837

cwe: CWE-284