| Package | Affected versions | Patched versions |
|---|---|---|
| discourse | = 2026.3.0≥ 2026.1.0, < 2026.1.2≥ 2026.2.0, < 2026.2.1 | 2026.1.22026.2.1 |
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass in the poll plugin allowed authenticated users to vote on, remove votes from, or toggle the open/closed status of polls they did not have access to. By passing post_id as an array (e.g. post_id[]=&post_id[]=), the authorization check resolves to the accessible post while the poll lookup resolves to a different post's poll. This affects the vote, remove_vote, and toggle_status endpoints in DiscoursePoll::PollsController. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free