Vulnerability 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, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus subscriber without chat enabled could receive chat message payloads in real time. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Discourse | Discourse | < 2026.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/discourse/discourse/security/advisories/GHSA-j7wq-rf5c-8783Third Party Advisory
FAQ
What is CVE-2026-44786?
CVE-2026-44786 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, chat events for public ca...
How severe is CVE-2026-44786?
CVE-2026-44786 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44786?
Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.