What’s Vulnerable › Products

Mattermost Ms Teams vulnerabilities

2 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your Mattermost Ms Teams version is affected

Latest Mattermost Ms Teams vulnerabilities

• CVE-2026-2476 — MS Teams plugin sensitive config values not properly masked in support packets (CVSS 4.3)
• CVE-2025-27936 — Webhook Secret Exposure via Timing attack in MSteams plugin (CVSS 5.9)