CVE-2025-23023

HighCVSS 8.2/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Weakness enumeration

CWE-346

Affected software

No affected versions have been published.

Timeline

Published: Feb 4, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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