Unrated severityNVD Advisory· Published Mar 20, 2026· Updated Mar 23, 2026
Discourse Authorization Page Displays Unvalidated Redirect Domain
CVE-2026-33427
Description
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.
Affected products
1- Range: >= 2026.1.0-latest, < 2026.1.2
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/discourse/discourse/security/advisories/GHSA-9vhg-2mx3-mqfrmitrex_refsource_CONFIRM
News mentions
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