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OpenAdvisories
Low · 2.7 CVE-2026-34947 EUVD-2026-18882

Discourse: Staged user custom fields are exposed on public invite pages

Published Apr 3, 2026 · Updated Apr 7, 2026 · Assigned by GitHub_M

Description

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, staged user custom fields and username are exposed on public invite pages without email verification. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Affected products

VendorProductAffectedFixed
discourse discourse >= 2026.1.0-latest, < 2026.1.3, >= 2026.2.0-latest, < 2026.2.2, >= 2026.3.0-latest, < 2026.3.0 —

References