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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-55704

Discourse: Shared-draft titles and excerpts leak through group post serialization

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 This could disclose shared-draft topic titles and post excerpt/content, resulting in an information disclosure of unpublished draft material.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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

discourse discourse

  • < 2026.1.6affected
  • >= 2026.5.0-latest, < 2026.5.2affected
  • >= 2026.6.0-latest, < 2026.6.1affected

References