CVE-2026-27162
Medium · 4.9CVSS
4.9
EPSS
0.4%
Published
Feb 26, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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