SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-rv67-7w2g-7976)

low Tenable Self-Hosted Container Security Plugin ID 439053

Description

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

- Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing
account auth type switch which allows an authenticated attacker to change account password without
confirmation via falsely claiming a different auth provider.. Mattermost Advisory ID: MMSA-2026-00583
(CVE-2026-22545)

Solution

Update the github.com/mattermost/mattermost-server library and its related packages to version 10.11.11 or later.

See Also

https://github.com/advisories/GHSA-rv67-7w2g-7976

Plugin Details

Severity: Low

ID: 439053

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/20/2026

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:N/I:P/A:N

CVSS Score Source: CVE-2026-22545

CVSS v3

Risk Factor: Low

Base Score: 3.5

Temporal Score: 3.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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: 3/16/2026

Vulnerability Publication Date: 3/16/2026

Reference Information

CVE: CVE-2026-22545

cwe: CWE-863