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Servers and applications

CVE-2025-61598

Discourse is an open source discussion platform. Version before 3.6.2 and 3.6.0.beta2, default Cache-Control response header with value no-store, no-cache was missing from error responses. This may caused unintended caching of those responses by proxies potentially leading to cache poisoning attacks. This vulnerability is fixed in 3.6.2 and 3.6.0.beta2.

Severity
Medium 6.3
Published
28 Oct 2025
Last changed
19 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.5.2, 3.6.0
Sources
NVD

Affected software

SoftwareAffected versions
DiscourseServers and applications · cpe:a:discourse:discourse
  • Every version before 3.5.2
  • Every version before 3.6.0
  • Version 3.6.0-beta1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-61598
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-61598