Discourse is an open-source discussion platform. From versions 2026.1.0 to before 2026.1.3, and 2026.2.0 to before 2026.2.2, an authorization bypass vulnerability allows unauthenticated or unauthorized users to view hidden (staff-only) tags and its associated data. All Discourse instances with tagging enabled and staff-only tag groups configured are impacted. This issue has been patched in versions 2026.1.3 and 2026.2.2.
{
"severity": "Medium",
"cpes": [
"cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
]
}