{"id":"CVE-2026-7184","aliases":["GHSA-9p44-r552-4wp9","GO-2026-6282"],"url":"https://o3.security/vulnerability/CVE-2026-7184","summary":"Mattermost Remote Cluster PATCH API Leaks Authentication Tokens","details":"Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows authenticated users with the {{manage_secure_connections}} permission to obtain remote cluster authentication tokens via a PATCH request to the remote cluster endpoint.. Mattermost Advisory ID: MMSA-2026-00662","published":"2026-06-12T15:49:46.626Z","modified":"2026-09-29T18:26:48.701047148Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00255,"percentile":0.17364,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"11.6.1"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"11.5.5"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"10.11.16"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","fixedVersion":"8.0.0-20260428142921-bd8fc9222672"}],"fix":{"url":"https://github.com/mattermost/mattermost/pull/36313","label":"mattermost/mattermost#36313"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7184.json"},{"type":"ADVISORY","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7184"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36313"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36311"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36310"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36306"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/36288"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/cad3e8e51a4d8627af6442f9df8ae3667fac7fc1"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/c5e67e28271c23cb585fe1a30ae81defcde848d6"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/bd8fc92226726da06c8fabaef568cc9ebaee1cb8"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/6fd49f56b5920569218fd2fc76d8ae802942f274"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/1a0643df00c1f51a3b7e919eec034eaf955f612f"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.16"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.5.5"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.6.2"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.0"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-29T18:26:48.701047148Z"}}