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VULNERABILITIES

CVE-2026-33300 Details

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 authorization bypass in the Category Chatables Controller show action allowed moderators to get information on hidden groups names and user count. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/discourse/discourse/commit/07f66658cce81a099a0d7115db5f3c69f5d3cca2 [email protected]Patch
https://github.com/discourse/discourse/security/advisories/GHSA-wrwm-vqx2-6x4v [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-200Exposure of Sensitive Information to an Unauthorized Actor[email protected]

Affected Products

ProductVersions
discourse discourse
>= 2026.1.0, < 2026.1.3
>= 2026.2.0, < 2026.2.2
2026.3.0

CPE

  • cpe:2.3:a:discourse:discourse:*:*:*:*:latest:*:*:*
  • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*
  • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest.1:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-33300
NVD Published Date:
Mar 31, 2026
NVD Last Modified:
Jul 24, 2026
Source:
[email protected]