---
id: CVE-2026-55704
title: Discourse is an open-source discussion platform
summary: >-
  Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2,
  2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but
  were not permitted to see shared drafts, could still receive shared-draft
  entries…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
published: '2026-08-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55704'
references:
  - url: >-
      https://github.com/discourse/discourse/security/advisories/GHSA-fxw4-38v9-76v8
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00169
epssPercentile: 0.06622
ingestedAt: '2026-09-18T20:51:25.621Z'
---

## Overview

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This could disclose shared-draft topic titles and post excerpt/content, resulting in an information disclosure of unpublished draft material. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.