SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-jwhw-xf5v-qgxc)

medium Tenable Cloud Security Plugin ID 437123

Description

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

- Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team
information, allowing guest users to bypass permissions and view information about public teams they are
not members of via a direct API call to /api/v4/teams/{team_id}. (CVE-2025-4128)

See Also

https://github.com/advisories/GHSA-jwhw-xf5v-qgxc

Plugin Details

Severity: Medium

ID: 437123

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 1/27/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-4128

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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: 6/11/2025

Vulnerability Publication Date: 6/5/2025

Reference Information

CVE: CVE-2025-4128

cwe: CWE-863