All vulnerabilities

Servers and applications

CVE-2025-58055

Discourse is an open-source community discussion platform. In versions 3.5.0 and below, the Discourse AI suggestion endpoints for topic “Title”, “Category”, and “Tags” allowed authenticated users to extract information about topics that they weren’t authorized to access. By modifying the “topic_id” value in API requests to the AI suggestion endpoints, users could target specific restricted…

Severity
Medium 4.3
Published
1 Oct 2025
Last changed
19 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.5.1, 3.6.0
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 3.5.1
  • Every version before 3.6.0
  • Version 3.6.0-beta1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-58055
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-58055