{"schema_version":"1.7.5","id":"GHSA-4ppj-6chv-5pgc","published":"2026-03-16T15:30:43Z","modified":"2026-03-23T18:56:06.542195Z","aliases":["CVE-2026-2476","GO-2026-4784"],"summary":"Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values","details":"Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606","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":"1.15.1-0.20260102165339-036c761bd3cb"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-4ppj-6chv-5pgc/GHSA-4ppj-6chv-5pgc.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2476"},{"type":"WEB","url":"https://github.com/mattermost/mattermost-plugin-msteams/commit/036c761bd3cb9ece92c17f2b151dfa906cebdcf6"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost-plugin-msteams"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-200"],"github_reviewed":true,"github_reviewed_at":"2026-03-19T19:25:25Z","nvd_published_at":"2026-03-16T14:19:30Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N"}]}