Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, unauthenticated users can determine whether a specific user is a member of a private group by observing changes in directory results when using the `exclude_groups` parameter. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, disable public access to the user directory via Admin → Settings → hide user profiles from public.

INFO

Published Date :

2026-03-20T23:12:30.489Z

Last Modified :

2026-03-23T16:48:49.363Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33425 vulnerability.

Vendors Products
Discourse
  • Discourse
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33425.

URL Resource
https://github.com/discourse/discourse/security/advisories/GHSA-r6rh-xvf5-r5f2 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact