CVE-2026-33427
Discourse Authorization Page Displays Unvalidated Redirect Domain
CVSS Score
0.0
EPSS Score
0.1%
EPSS Percentile
15th
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an unauthenticated attacker can cause a legitimate Discourse authorization page to display an attacker-controlled domain, facilitating social engineering attacks against users. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
| CWE | CWE-862 |
| Vendor | discourse |
| Product | discourse |
| Published | Mar 20, 2026 |
| Last Updated | Mar 23, 2026 |
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Affected Versions
discourse / discourse
>= 2026.1.0-latest, < 2026.1.2 >= 2026.2.0-latest, < 2026.2.1 = 2026.3.0-latest