{"id":"GO-2026-5734","summary":"Mattermost MS Teams plugin doesn't limit the request body size on the /lifecycle webhook endpoint in github.com/mattermost/mattermost-plugin-msteams","details":"Mattermost MS Teams plugin doesn't limit the request body size on the /lifecycle webhook endpoint in github.com/mattermost/mattermost-plugin-msteams","aliases":["CVE-2026-21388","GHSA-x274-8qfc-hrgf"],"modified":"2026-06-25T23:01:40.052056970Z","published":"2026-06-25T22:34:38Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5734","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-x274-8qfc-hrgf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21388"},{"type":"FIX","url":"https://github.com/mattermost/mattermost-plugin-msteams/commit/6fe4d295592ecc8767d67e69286cbeec01be3210"},{"type":"WEB","url":"https://github.com/mattermost/mattermost-plugin-msteams/releases/tag/v2.3.2"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-plugin-msteams","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-msteams"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.15.1-0.20260213190728-6fe4d295592e"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5734.json"}}],"schema_version":"1.7.5"}