SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-h469-4fcf-p23h)

medium Tenable Self-Hosted Container Security Plugin ID 435057

Description

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

- Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <=
10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import
feature. (CVE-2025-8402)

See Also

https://github.com/advisories/GHSA-h469-4fcf-p23h

Plugin Details

Severity: Medium

ID: 435057

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 8/22/2025

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: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2025-8402

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/21/2025

Vulnerability Publication Date: 8/21/2025

Reference Information

CVE: CVE-2025-8402

cwe: CWE-476