Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-9p64-jpc7-m2rp)

high Tenable Self-Hosted Container Security Plugin ID 442574

Description

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

 - Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive
 configuration fields before including them in support packet generation, which allows a Mattermost System
 Admin or any party with access to a support packet to obtain sensitive credentials in plaintext via
 downloading a support packet from the System Console.. Mattermost Advisory ID: MMSA-2026-00607
 (CVE-2026-6346)

Solution

Update the github.com/mattermost/mattermost/server/v8 library and its related packages to version 10.11.14 or later.

See Also

https://github.com/advisories/GHSA-9p64-jpc7-m2rp

Plugin Details

Severity: High

ID: 442574

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 6/2/2026

Updated: 6/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.61

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 5.7

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

CVSS Score Source: CVE-2026-6346

CVSS v3

Risk Factor: High

Base Score: 8.7

Temporal Score: 7.6

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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: 5/18/2026

Vulnerability Publication Date: 5/18/2026

Reference Information

CVE: CVE-2026-6346

cwe: CWE-200