Detections
Analytics

SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-9hh7-6558-qfp2)

low Tenable Self-Hosted Container Security Plugin ID 436104

Description

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

 - Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents
 plugin which allows other users to determine when users had read channels via channel member objects
 (CVE-2025-55074)

See Also

https://github.com/advisories/GHSA-9hh7-6558-qfp2

Plugin Details

Severity: Low

ID: 436104

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 11/19/2025

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:P/I:N/A:N

CVSS Score Source: CVE-2025-55074

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: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: 11/18/2025

Vulnerability Publication Date: 11/18/2025

Reference Information

CVE: CVE-2025-55074

cwe: CWE-276