Detections
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SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-57cc-2pf4-mhmx)

medium Tenable Cloud Security Plugin ID 437904

Description

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

 - Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate team
 membership when processing channel mentions which allows authenticated users to determine the existence of
 teams and their URL names via posting channel shortlinks and observing the channel_mentions property in
 the API response. Mattermost Advisory ID: MMSA-2025-00563 (CVE-2025-14350)

See Also

https://github.com/advisories/GHSA-57cc-2pf4-mhmx

Plugin Details

Severity: Medium

ID: 437904

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 2/20/2026

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: Medium

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-2025-14350

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: 2/16/2026

Vulnerability Publication Date: 2/16/2026

Reference Information

CVE: CVE-2025-14350

cwe: CWE-862