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SCA: security update for github.com/mattermost/mattermost/server/v8 (GHSA-cmc8-222c-vqp9)

critical Tenable Cloud Security Plugin ID 413970

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, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly
 validate that the channel that comes from the sync message is a shared channel, when shared channels are
 enabled, which allows a malicious remote to add users to arbitrary teams and channels (CVE-2024-39274)

See Also

https://github.com/advisories/GHSA-cmc8-222c-vqp9

Plugin Details

Severity: Critical

ID: 413970

Version: Revision 1.8

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: 3

Percentile: 23.51

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2024-39274

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

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-2024-39274

cwe: CWE-284