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github.com/mattermost/mattermost-plugin-msteams

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6 Total advisories
6 Vulnerabilities
0 Malware

Vulnerabilities

LOW 3.7
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CVE-2026-21388

Mattermost MS Teams plugin doesn't limit the request body size on the /lifecycle webhook endpoint

MEDIUM 6.5
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CVE-2026-24661

Mattermost MS Teams plugin doesn't limit the request body size on the /changes webhook endpoint
HIGH 7.6
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CVE-2026-2476

Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values
UNKNOWN
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CVE-2026-2476

Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values in github.com/mattermost/mattermost-plugin-msteams
UNKNOWN
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CVE-2025-27936

Mattermost vulnerable to Observable Timing Discrepancy in github.com/mattermost/mattermost-plugin-msteams
MEDIUM 5.3
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CVE-2025-27936

Mattermost vulnerable to Observable Timing Discrepancy

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