{"schema_version":1,"title":"github.com/mattermost/mattermost-plugin-msteams (Go) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in github.com/mattermost/mattermost-plugin-msteams (Go): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-21388, was published on 25 June 2026.","url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-plugin-msteams","json_url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-plugin-msteams.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-plugin-msteams","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":3},"latest":[{"cve":"CVE-2026-21388","cvss":3.1,"epss":0.0031,"slug":"cve-2026-21388-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on","title":"GO-2026-5734 - Mattermost MS Teams plugin doesn't limit the request body size on the /lifecycle webhook endpoint in github.com/mattermost/mattermost-plugin","severity":"low","exploited":false,"published_at":"2026-06-25T22:34:38+00:00","url":"https://junglewise.ai/threats/cve-2026-21388-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on"},{"cve":"CVE-2026-24661","cvss":3.1,"epss":0.0031,"slug":"cve-2026-24661-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on","title":"GO-2026-5153 - Mattermost MS Teams plugin doesn't limit the request body size on the /changes webhook endpoint in github.com/mattermost/mattermost-plugin-m","severity":"low","exploited":false,"published_at":"2026-06-25T18:26:48+00:00","url":"https://junglewise.ai/threats/cve-2026-24661-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on"},{"cve":"CVE-2026-2476","cvss":3.1,"epss":0.0018,"slug":"cve-2026-2476-mattermost-microsoft-teams-plugin-fails-to-properly-mask-sensitive","title":"GO-2026-4784 - Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values in github.com/mattermost/mattermost-plugin-msteams","severity":"low","exploited":false,"published_at":"2026-03-23T18:16:14+00:00","url":"https://junglewise.ai/threats/cve-2026-2476-mattermost-microsoft-teams-plugin-fails-to-properly-mask-sensitive"},{"cve":"CVE-2025-27936","cvss":3.1,"epss":0.0034,"slug":"cve-2025-27936-mattermost-vulnerable-to-observable-timing-discrepancy","title":"GO-2025-3618 - Mattermost vulnerable to Observable Timing Discrepancy in github.com/mattermost/mattermost-plugin-msteams","severity":"low","exploited":false,"published_at":"2025-04-22T16:56:33+00:00","url":"https://junglewise.ai/threats/cve-2025-27936-mattermost-vulnerable-to-observable-timing-discrepancy"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"github.com/mattermost/mattermost-server (Go)","slug":"github-com-mattermost-mattermost-server","vulnerabilities":274,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server"},{"name":"github.com/mattermost/mattermost-server/v6 (Go)","slug":"github-com-mattermost-mattermost-server-v6","vulnerabilities":188,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6"},{"name":"github.com/mattermost/mattermost-server/v5 (Go)","slug":"github-com-mattermost-mattermost-server-v5","vulnerabilities":186,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5"},{"name":"github.com/mattermost/mattermost/server/v8 (Go)","slug":"github-com-mattermost-mattermost-server-v8","vulnerabilities":182,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8"},{"name":"stdlib (Go)","slug":"go-stdlib","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/go-stdlib"},{"name":"github.com/siyuan-note/siyuan/kernel (Go)","slug":"github-com-siyuan-note-siyuan-kernel","vulnerabilities":158,"url":"https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel"},{"name":"code.gitea.io/gitea (Go)","slug":"code-gitea-io-gitea","vulnerabilities":128,"url":"https://junglewise.ai/threats/technologies/code-gitea-io-gitea"},{"name":"gogs.io/gogs (Go)","slug":"gogs-io-gogs","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/gogs-io-gogs"},{"name":"github.com/traefik/traefik (Go)","slug":"github-com-traefik-traefik","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik"},{"name":"github.com/usememos/memos (Go)","slug":"github-com-usememos-memos","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-usememos-memos"},{"name":"github.com/traefik/traefik/v2 (Go)","slug":"github-com-traefik-traefik-v2","vulnerabilities":73,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2"},{"name":"github.com/traefik/traefik/v3 (Go)","slug":"github-com-traefik-traefik-v3","vulnerabilities":68,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v3"}],"technology":{"hub":true,"name":"github.com/mattermost/mattermost-plugin-msteams (Go)","slug":"github-com-mattermost-mattermost-plugin-msteams","vendor":{"name":"Go","slug":"go","url":"https://junglewise.ai/threats/vendors/go"},"aliases":[],"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-plugin-msteams"},"most_severe":[{"cve":"CVE-2025-27936","cvss":3.1,"epss":0.0034,"slug":"cve-2025-27936-mattermost-vulnerable-to-observable-timing-discrepancy","title":"GO-2025-3618 - Mattermost vulnerable to Observable Timing Discrepancy in github.com/mattermost/mattermost-plugin-msteams","severity":"low","exploited":false,"published_at":"2025-04-22T16:56:33+00:00","url":"https://junglewise.ai/threats/cve-2025-27936-mattermost-vulnerable-to-observable-timing-discrepancy"},{"cve":"CVE-2026-21388","cvss":3.1,"epss":0.0031,"slug":"cve-2026-21388-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on","title":"GO-2026-5734 - Mattermost MS Teams plugin doesn't limit the request body size on the /lifecycle webhook endpoint in github.com/mattermost/mattermost-plugin","severity":"low","exploited":false,"published_at":"2026-06-25T22:34:38+00:00","url":"https://junglewise.ai/threats/cve-2026-21388-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on"},{"cve":"CVE-2026-24661","cvss":3.1,"epss":0.0031,"slug":"cve-2026-24661-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on","title":"GO-2026-5153 - Mattermost MS Teams plugin doesn't limit the request body size on the /changes webhook endpoint in github.com/mattermost/mattermost-plugin-m","severity":"low","exploited":false,"published_at":"2026-06-25T18:26:48+00:00","url":"https://junglewise.ai/threats/cve-2026-24661-mattermost-ms-teams-plugin-doesn-t-limit-the-request-body-size-on"},{"cve":"CVE-2026-2476","cvss":3.1,"epss":0.0018,"slug":"cve-2026-2476-mattermost-microsoft-teams-plugin-fails-to-properly-mask-sensitive","title":"GO-2026-4784 - Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values in github.com/mattermost/mattermost-plugin-msteams","severity":"low","exploited":false,"published_at":"2026-03-23T18:16:14+00:00","url":"https://junglewise.ai/threats/cve-2026-2476-mattermost-microsoft-teams-plugin-fails-to-properly-mask-sensitive"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}