CVE-2026-33415
Low
Description
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 authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were not authorized to view. Insufficient access controls on a sentiment analytics endpoint allowed category permission boundaries to be bypassed. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
SeverityLow
CVSS2.7
Exploit probability—
Product
Discourse
PublishedMar 31, 2026
First seenMar 31, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- discourse discourse2026.1.3, 2026.2.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| discourse discourse | 2026.1.0 ≤ v < 2026.1.3, 2026.2.0 ≤ v < 2026.2.2, 2026.3.0 | 2026.1.3, 2026.2.2 |
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