{"id":"CVE-2026-2476","aliases":["GHSA-4ppj-6chv-5pgc","GO-2026-4784"],"url":"https://o3.security/vulnerability/CVE-2026-2476","summary":"MS Teams plugin sensitive config values not properly masked in support packets","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","published":"2026-03-16T11:11:07.387Z","modified":"2026-08-12T03:51:32.361004664Z","cvss":{"score":7.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-plugin-msteams","fixedVersion":"1.15.1-0.20260102165339-036c761bd3cb"}],"fix":{"url":"https://github.com/mattermost/mattermost-plugin-msteams/commit/036c761bd3cb9ece92c17f2b151dfa906cebdcf6","label":"mattermost/mattermost-plugin-msteams@036c761"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2476.json"},{"type":"ADVISORY","url":"https://mattermost.com/security-updates"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:32.361004664Z"}}