CVE-2026-77582 (GCVE-0-2026-77582)
Vulnerability from cvelistv5
Published
2026-09-21 16:43
Modified
2026-09-23 19:16
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-208 - Observable Timing Discrepancy
Summary
Tinyauth is an authentication and authorization server. Prior to 5.1.0, Tinyauth exposes a remotely observable timing difference between authentication attempts for existing and nonexistent local usernames. internal/controller/user_controller.go loginHandler and internal/middleware/context_middleware.go basicAuth return quickly after internal/service/auth_service.go reports a missing user, while an existing user causes bcrypt password verification work. Repeated measurements can therefore disclose valid usernames and support targeted credential attacks. This issue is fixed in version 5.1.0.
References
Impacted products
Vendor Product Version
tinyauthapp tinyauth Version: < 5.1.0
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