CVE-2025-23023

Description

Discourse is an open source platform for community discussion. In affected versions an attacker can carefully craft a request with the right request headers to poison the anonymous cache (for example, the cache may have a response with missing preloaded data). This issue only affects anonymous visitors of the site. This problem has been patched in the latest version of Discourse. Users are advised to upgrade. Users unable to upgrade may disable anonymous cache by setting the `DISCOURSE_DISABLE_ANON_CACHE` environment variable to a non-empty value.

Reserved 2025-01-10 | Published 2025-02-04 | Updated 2025-02-12 | Assigner GitHub_M

Problem types

CWE-346: Origin Validation Error

Product status

stable: < 3.3.2
affected

tests-passed: < 3.4.0.beta3
affected

References

github.com/...course/security/advisories/GHSA-5h4h-2f46-r3c7

cve.org (CVE-2025-23023)

nvd.nist.gov (CVE-2025-23023)

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