CVE-2026-47263
EUVD-2026-3656012.06.2026, 21:16
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, the MessageBus.publish call for /web_hook_events/<id> in Jobs::RedeliverWebHookEvents did not pass group_ids, leaving the channel readable by any authenticated user (or anonymous user on instances where login_required is disabled). Webhook IDs are sequential integers and trivially enumerable. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| discourse | discourse | 𝑥 < 2026.1.0 |
| discourse | discourse | 2026.1.0 ≤ 𝑥 < 2026.1.4 |
| discourse | discourse | 2026.3.0 ≤ 𝑥 < 2026.3.1 |
| discourse | discourse | 2026.4.0 ≤ 𝑥 < 2026.4.1 |
| discourse | discourse | 2026.5.0 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration