CVE-2026-57447

Medium

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.

SeverityMedium
CVSS4.3
Exploit probability—
ProductDiscourse-doc-categories
PublishedOct 16, 2026
First seenOct 16, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
discourse discourse-doc-categories< b15d4de02ad29d7c9525346afee51fef4a2c605a—

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CVE-2026-57447 · Discourse-doc-categories · Dark Radar