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Medium severity4.3NVD Advisory· Published Jun 12, 2026· Updated Jun 15, 2026

CVE-2026-47263

CVE-2026-47263

Description

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/ 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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Discourse (software)/Discourseinferred2 versions
    >=2026.1.0,<2026.1.4 || >=2026.3.0,<2026.3.1 || >=2026.4.0,<2026.4.1+ 1 more
    • (no CPE)range: >=2026.1.0,<2026.1.4 || >=2026.3.0,<2026.3.1 || >=2026.4.0,<2026.4.1
    • (no CPE)range: <2026.1.4 or <2026.3.1 or <2026.4.1 or <2026.5.0-latest.1
  • osv-coords
    pkg:bitnami/discourse
    Range: >= 2026.1.0, < 2026.1.4

Patches

Vulnerability mechanics

References

1

News mentions

1