GitHub Advisoryadvisory · Go

GHSA-j5vq-62gr-8v3r Mattermost fails to check Websocket request for proper UTF-8 format potentially crashing Calls plug-in

MEDIUM Published 2025-12-17 Modified 2025-12-20 Official page ↗
Aliases
CVE-2025-12689
Ecosystem
Go
Packages
github.com/mattermost/mattermost-plugin-calls
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1287
Reviewed
2025-12-20

Affected packages

• Go github.com/mattermost/mattermost-plugin-calls: < 1.11.0 → fixed in 1.11.0

Description

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.

Related

Alias · CVE (1)

  • CVE-2025-12689 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,… vulnerability

Weakness · CWE (1)

  • CWE-1287 Improper Validation of Specified Type of Input weakness

References