CVE-2026-33300
Discourse: Hidden group names and access metadata are exposed to moderators through the `category-chatables` endpoint
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
13th
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.
| CWE | CWE-200 |
| Vendor | discourse |
| Product | discourse |
| Published | Mar 31, 2026 |
| Last Updated | Apr 1, 2026 |
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Affected Versions
discourse / discourse
>= 2026.1.0-latest, < 2026.1.3 >= 2026.2.0-latest, < 2026.2.2 >= 2026.3.0-latest, < 2026.3.0