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CVE PROGRAM SOURCE RECORD4.9 Medium

CVE-2026-27162

DIscourse doesn't prevent whispers to leak in excerpts

Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, `posts_nearby` was checking topic access but then returning all posts regardless of type, including whispers that should only be visible to whisperers. Use `Post.secured(guardian)` to properly filter post types based on user permissions. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Affected products

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

discourse discourse

  • < 2025.12.2affected
  • >= 2026.1.0-latest, < 2026.1.1affected
  • >= 2026.2.0-latest, < 2026.2.0affected

References