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 authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were not authorized to view. Insufficient access controls on a sentiment analytics endpoint allowed category permission boundaries to be bypassed. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

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Fixes

Solution

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Workaround

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History

Tue, 31 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
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 authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were not authorized to view. Insufficient access controls on a sentiment analytics endpoint allowed category permission boundaries to be bypassed. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Title Discourse: Improper Access Control in discourse-ai Allows Unauthorized Category Content Exposure
Weaknesses CWE-284
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T17:42:15.870Z

Reserved: 2026-03-19T17:02:34.171Z

Link: CVE-2026-33415

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-31T18:16:52.410

Modified: 2026-03-31T18:16:52.410

Link: CVE-2026-33415

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses