Detections
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SCA: security update for github.com/mattermost/mattermost-plugin-calls (GHSA-j5vq-62gr-8v3r)

medium Tenable Self-Hosted Container Security Plugin ID 436473

Description

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

 - Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket
 request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed
 request. (CVE-2025-12689)

See Also

https://github.com/advisories/GHSA-j5vq-62gr-8v3r

Plugin Details

Severity: Medium

ID: 436473

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 12/20/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

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:N/I:N/A:C

CVSS Score Source: CVE-2025-12689

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:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/17/2025

Vulnerability Publication Date: 12/11/2025

Reference Information

CVE: CVE-2025-12689