Detections
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SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-7h34-9chr-58qh)

medium Tenable Cloud Security Plugin ID 428466

Description

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

 - Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify
 authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read
 posts in private channels they don't have access to via guessing the PendingPostID of recently created
 posts. (CVE-2025-6226)

See Also

https://github.com/advisories/GHSA-7h34-9chr-58qh

Plugin Details

Severity: Medium

ID: 428466

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 7/21/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.66

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-6226

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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: 7/18/2025

Vulnerability Publication Date: 7/18/2025

Reference Information

CVE: CVE-2025-6226

cwe: CWE-306