SCA: security update for github.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v8 (GHSA-hm95-jx66-g2gh)

medium Tenable Cloud Security Plugin ID 435343

Description

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

- Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to
redirect users to malicious sites via crafted OAuth login URLs (CVE-2025-9084)

See Also

https://github.com/advisories/GHSA-hm95-jx66-g2gh

Plugin Details

Severity: Medium

ID: 435343

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 9/17/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.14

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2025-9084

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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: 9/15/2025

Vulnerability Publication Date: 9/15/2025

Reference Information

CVE: CVE-2025-9084

cwe: CWE-601