CVE-2026-44786

Published: Jun 12, 2026Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

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.

Affected (5)

Products: Discourse: Discourse

Discourse

1 product

Discourse

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Discourse Discourse	Before 2026.1.0
Discourse Discourse	From 2026.1.0 to 2026.1.4
Discourse Discourse	From 2026.3.0 to 2026.3.1
Discourse Discourse	From 2026.4.0 to 2026.4.1
Discourse Discourse	Version 2026.5.0

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (1)

https://github.com/discourse/discourse/security/advisories/GHSA-j7wq-rf5c-8783

Source: security-advisories@github.com

Third Party Advisory

Timeline

No history available yet.