Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer's authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a.
History

Mon, 26 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Discourse
Discourse discourse-doc-categories
Vendors & Products Discourse
Discourse discourse-doc-categories

Fri, 16 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
Description Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer's authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a.
Title Discourse Doc Categories: Doc category index refresh leaks private topic titles
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-16T15:31:10.493Z

Updated: 2026-10-16T17:06:24.293Z

Reserved: 2026-06-24T13:21:20.730Z

Link: CVE-2026-57447

cve-icon Vulnrichment

Updated: 2026-10-16T16:32:07.643Z

cve-icon NVD

Status : Deferred

Published: 2026-10-16T16:18:44.357

Modified: 2026-10-16T20:04:29.760

Link: CVE-2026-57447

cve-icon Redhat

No data.