CVE-2026-33300
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authorization bypass in the Category Chatables Controller show action allowed moderators to get information on hidden groups names and user count. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
- Affected products
- Discourse
- Discourse
- < 2026.1.3, 2026.2.2, 2026.3.0
- Fix
- Available
- CVSS 3.1
- 6.5 MEDIUM
- EPSS
- 0.2% (14th percentile)
- Weakness
- CWE-200
- NVD status
- Analyzed
- Published
- 2026-03-31
CVE-2026-33300 at NVD
No indexed exploits for CVE-2026-33300 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-33300 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.