Description (CNA)
Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the discourse_templates endpoint exposed hidden tag names because DiscourseTemplates::TemplatesSerializer in plugins/discourse-templates/app/serializers/discourse_templates/templates_serializer.rb did not filter tags through the request Guardian. The serializer did not respect tag group permissions, allowing users to see tags they were not permitted to view. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| discourse / discourse | affected < 2026.1.6; affected >= 2026.5.0-latest, < 2026.5.2; affected >= 2026.6.0-latest, < 2026.6.1; affected >= 2026.7.0-latest, < 2026.7.0 |
CWE
CWE-862
References
- https://github.com/discourse/discourse/security/advisories/GHSA-xrgc-52m8-82hm
- https://github.com/discourse/discourse/commit/25e9d55b4c652b8dc1c90f44c40c8f3fec77748c
- https://github.com/discourse/discourse/commit/c9b431b3b75727f7132ec231142371d203a6124b
- https://github.com/discourse/discourse/commit/f216f258bd473e6299c6aef7b6130e7db90116c0
- https://github.com/discourse/discourse/commit/f41e71b645eb60cc263e7a1de22251028115abf1
ADP enrichment
No English description supplied.
No references supplied.