CVE-2026-33424
Medium
Description
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an attacker can grant access to a private message topic through invites even after they lose access to that PM. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Discourse
PublishedMar 21, 2026
First seenMar 21, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- discourse discourse2026.1.2, 2026.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| discourse discourse | 2026.1.0 ≤ v < 2026.1.2, 2026.2.0 ≤ v < 2026.2.1, 2026.3.0 | 2026.1.2, 2026.2.1 |
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