SCA: security update for github.com/mattermost/mattermost/server/v8 (GHSA-3mw5-466q-295q)

medium Tenable Cloud Security Plugin ID 439590

Description

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

- Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to
validate Advanced Logging file target paths which allows system administrators to read arbitrary host
files via malicious AdvancedLoggingJSON configuration in support packet generation. Mattermost Advisory
ID: MMSA-2025-00562 (CVE-2026-3112)

Solution

Update the github.com/mattermost/mattermost/server/v8 library and its related packages to version 10.11.12 or later.

See Also

https://github.com/advisories/GHSA-3mw5-466q-295q

Plugin Details

Severity: Medium

ID: 439590

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/1/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

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:C/I:N/A:N

CVSS Score Source: CVE-2026-3112

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:H/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: 3/26/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-3112

cwe: CWE-22