CVE-2025-12689
MEDIUM6.5EPSS 0.09%Mattermost fails to check Websocket request for proper UTF-8 format potentially crashing Calls plug-in in github.com/mattermost/mattermost-plugin-calls
Published: 12/17/2025Modified: 3/3/2026
Description
Mattermost fails to check Websocket request for proper UTF-8 format potentially crashing Calls plug-in in github.com/mattermost/mattermost-plugin-calls
Affected packages (2)
- Go/github.com/mattermost/mattermost-plugin-callsfrom 0, < 1.11.0
- Go/github.com/mattermost/mattermost-plugin-callsfrom 0, < 1.11.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (5)
- ADVISORYhttps://github.com/advisories/GHSA-j5vq-62gr-8v3r
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-12689
- PATCHhttps://github.com/mattermost/mattermost
- WEBhttps://github.com/mattermost/mattermost-plugin-calls/commit/f68b41980e1274e05cf91c687e2af1a73c5e36ca
- WEBhttps://mattermost.com/security-updates