All vulnerabilities

Servers and applications

CVE-2026-27162

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…

Severity
Medium 4.9
Published
26 Feb 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
2025.12.2, 2026.1.1
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 2025.12.2
  • From 2026.1.0 before 2026.1.1
  • Version 2026.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-27162
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-27162