CVE-2026-44782

Discourse (open-source) is affected. In versions 2026.1.0-latest–2026.1.3.x, 2026.3.0-latest–2026.3.0.x, and 2026.4.0-latest–2026.4.0.x, GroupPostSerializer used include_user_long_name? as the predicate for the :name attribute. AMS checks for include_name?, but the misnamed predicate was never in...

EUVD-2026-36585

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, GroupPostSerializer declared includeuserlongname? as the predicate for its :name attribute, but AMS looks for includename?...

CVE-2026-44782 Discourse: GroupPostSerializer leaks hidden full names through reaction post association

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, GroupPostSerializer declared includeuserlongname? as the predicate for its :name attribute, but AMS looks for includename?...

PT-2026-48979

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, GroupPostSerializer declared include user long name? as the predicate for its :name attribute, but AMS looks for include...