CVE-2022-46159: Discourse

Medium severity, CVSS 4.3. EPSS: 0.7% chance of exploitation in the next 30 days.

Discourse is an open-source discussion platform. In version 2.8.13 and prior on the `stable` branch and version 2.9.0.beta14 and prior on the `beta` and `tests-passed` branches, any authenticated user can create an unlisted topic. These topics, which are not readily available to other users, can take up unnecessary site resources. A patch for this issue is available in the `main` branch of Discourse. There are no known workarounds available.

Affected products

• Discourse Discourse: up to and including 2.8.13; version 2.9.0 only

Published 2022-12-02. Last modified 2026-06-17.