CVE-2025-64528 – Users are able to find users by name even when `enable_names` is off

CVE ID : CVE-2025-64528

Published : Dec. 30, 2025, 4:04 p.m. | 19 minutes ago

Description : Discourse is an open source discussion platform. Prior to versions 3.5.3, 2025.11.1, and 2025.12.0, an attacker who knows part of a username can find the user and their full name via UI or API, even when `enable_names` is disabled. Versions 3.5.3, 2025.11.1, and 2025.12.0 contain a fix.

Severity: 0.0 | NA

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