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OpenAdvisories
Low · 2.7 CVE-2026-33394 EUVD-2026-13340

Discourse leaks PM post edits to moderators

Published Mar 19, 2026 · Updated Mar 20, 2026 · Assigned by GitHub_M

Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the Post Edits admin report (/admin/reports/post_edits) leaked the first 40 characters of raw post content from private messages and secure categories to moderators who shouldn't have access. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Affected products

VendorProductAffectedFixed
discourse discourse >= 2026.1.0-latest, < 2026.1.2, >= 2026.2.0-latest, < 2026.2.1, = 2026.3.0-latest —

References