UpHeron
All vulnerabilities

Servers and applications

CVE-2026-44785

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, the AI "explain" helper only checks can_see? on the post being explained, not its reply_to_post, so any authenticated user with access to the AI helper could read the raw contents of a hidden parent post by invoking…

Severity
Medium 4.3
Published
12 Jun 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
2026.1.0, 2026.1.4, 2026.3.1, 2026.4.1
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 2026.1.0
  • From 2026.1.0 before 2026.1.4
  • From 2026.3.0 before 2026.3.1
  • From 2026.4.0 before 2026.4.1
  • Version 2026.5.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-44785
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-44785