CVE-2022-31184: Discourse

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Discourse is the an open source discussion platform. In affected versions an email activation route can be abused to send mass spam emails. A fix has been included in the latest stable, beta and tests-passed versions of Discourse which rate limits emails. Users are advised to upgrade. Users unable to upgrade should manually rate limit email.

Affected products

• Discourse Discourse: up to and including 2.8.6; version 2.9.0 only

Published 2022-08-01. Last modified 2026-06-17.