An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.
{
"cwe_ids": [
"CWE-613"
],
"github_reviewed": true,
"github_reviewed_at": "2026-01-12T20:18:44Z",
"nvd_published_at": "2020-06-19T20:15:00Z",
"severity": "MODERATE"
}