SCA: security update for github.com/mattermost/mattermost/server/v8 (GHSA-9h6j-4ffx-cm84)

medium Tenable Self-Hosted Container Security Plugin ID 434637

Description

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

- Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM
can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary
server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
(CVE-2025-31363)

See Also

https://github.com/advisories/GHSA-9h6j-4ffx-cm84

Plugin Details

Severity: Medium

ID: 434637

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.93

Vendor

Vendor Severity: Low

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-2025-31363

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: 4/16/2025

Vulnerability Publication Date: 4/16/2025

Reference Information

CVE: CVE-2025-31363