Medium severity5.3OSV Advisory· Published Dec 30, 2025· Updated Jun 17, 2026
CVE-2025-64528
CVE-2025-64528
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6v0.8.0, v0.8.1, v0.8.2, …+ 4 more
- (no CPE)range: v0.8.0, v0.8.1, v0.8.2, …
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*range: <3.5.3
- cpe:2.3:a:discourse:discourse:2025.11.0:*:*:*:stable:*:*:*
- cpe:2.3:a:discourse:discourse:2025.12.0:*:*:*:stable:*:*:*
- (no CPE)range: <3.5.3, <2025.11.1, <2025.12.0
Patches
Vulnerability mechanics
References
4- github.com/discourse/discourse/commit/1cb45b8b287597085e3514596ffb1d9b41938f81nvdPatch
- github.com/discourse/discourse/commit/6192f55629624925595dae14364fd86cac0f09dfnvdPatch
- github.com/discourse/discourse/commit/e936a523b5900a9d866d23ea3da904ba12bb0fb2nvdPatch
- github.com/discourse/discourse/security/advisories/GHSA-c59w-jwx7-34v4nvdThird Party Advisory
News mentions
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