PT-2026-48983 · Discourse · Discourse

CVE-2026-44786

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Published

2026-06-12

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Updated

2026-06-16

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Name of the Vulnerable Software and Affected Versions Discourse versions 2026.1.0 through 2026.1.3 Discourse versions 2026.3.0 Discourse versions 2026.4.0
Description Chat events for public category channels are published to the MessageBus without permission scoping. This allows any MessageBus subscriber who does not have chat enabled to receive chat message payloads in real time.
Recommendations Update versions 2026.1.0 through 2026.1.3 to 2026.1.4. Update version 2026.3.0 to 2026.3.1. Update version 2026.4.0 to 2026.4.1.

Exploit

Fix

Information Disclosure

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Weakness Enumeration

CWE-200

Related Identifiers

BIT-DISCOURSE-2026-44786
CVE-2026-44786
GHSA-J7WQ-RF5C-8783

Affected Products

Discourse