Is CVE-2026-55704 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-55704?

CVE-2026-55704 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-55704

Description

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 This could disclose shared-draft topic titles and post excerpt/content, resulting in an information disclosure of unpublished draft material.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.