Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-v8fr-vxmw-6mf6)

medium Tenable Self-Hosted Container Security Plugin ID 437266

Description

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

 - Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <=
 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook
 runs. This allows authenticated users with member-level permissions to bypass system admin restrictions
 and add or remove users to/from private channels via the playbook run participants feature, even when the
 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive
 channel content and allow guest users to gain channel management privileges. (CVE-2025-46702)

See Also

https://github.com/advisories/GHSA-v8fr-vxmw-6mf6

Plugin Details

Severity: Medium

ID: 437266

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 1/28/2026

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: Medium

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-2025-46702

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: 6/30/2025

Vulnerability Publication Date: 6/5/2025

Reference Information

CVE: CVE-2025-46702

cwe: CWE-863