CVE-2025-61598 MEDIUM

CVE-2025-61598: Discourse is missing Cache-Control response header on error responses

Vendor Discourse
Product discourse
Weakness CWE-524
Published October 28, 2025
Last update October 29, 2025
View on NVD All CVEs

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 28, 2025 CVE published
October 29, 2025 Record updated