EUVD-2026-84011

Tinyauth: forward-auth per-app ACL is matched case-sensitively against the case-insensitive hostname, letting an authenticated user reach apps they are not on the allowlist for...

Tinyauth: User enumeration attack by timing oracle

Summary It's possible to enumerate users through a timing oracle. In other words: I can easily check if a username exists or not by observing the timing differences between logins. PoC Setup a tinyauth server with a local user. It can be over the network. Try to log in with the local user, using ...

GHSA-456H-WW26-F758 Tinyauth: User enumeration attack by timing oracle

Summary It's possible to enumerate users through a timing oracle. In other words: I can easily check if a username exists or not by observing the timing differences between logins. PoC Setup a tinyauth server with a local user. It can be over the network. Try to log in with the local user, using ...

EUVD-2026-84014

Tinyauth: User enumeration attack by timing oracle...

CVE-2026-77582

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/usercontroller.go loginHandler and...

CVE-2026-77560

Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth compares forwarded hostnames case-sensitively while reverse proxies route equivalent hostnames case-insensitively, allowing an authenticated low-privilege user to bypass per-app access controls with a differently cas...

CVE-2026-77561

Tinyauth is an authentication and authorization server. Prior to 5.1.0, an unauthenticated remote attacker can send POST /api/user/login requests with 257 distinct nonexistent usernames to fill MaxLoginAttemptRecords and activate a global login lockdown. internal/controller/usercontroller.go...

CVE-2026-77561 Tinyauth: Unauthenticated login attempts can trigger global login lockdown denial of service

Tinyauth is an authentication and authorization server. Prior to 5.1.0, an unauthenticated remote attacker can send POST /api/user/login requests with 257 distinct nonexistent usernames to fill MaxLoginAttemptRecords and activate a global login lockdown. internal/controller/usercontroller.go...

CVE-2026-77561

The Tinyauth authentication server is vulnerable to a denial of service (DoS) attack in versions prior to 5.1.0 . An unauthenticated remote attacker can send POST /api/user/login requests using 257 distinct nonexistent usernames to exhaust the MaxLoginAttemptRecords cap. This triggers a global lo...

CVE-2026-77561 Tinyauth: Unauthenticated login attempts can trigger global login lockdown denial of service

Tinyauth is an authentication and authorization server. Prior to 5.1.0, an unauthenticated remote attacker can send POST /api/user/login requests with 257 distinct nonexistent usernames to fill MaxLoginAttemptRecords and activate a global login lockdown. internal/controller/usercontroller.go...

CVE-2026-77561 Tinyauth: Unauthenticated login attempts can trigger global login lockdown denial of service

Tinyauth is an authentication and authorization server. Prior to 5.1.0, an unauthenticated remote attacker can send POST /api/user/login requests with 257 distinct nonexistent usernames to fill MaxLoginAttemptRecords and activate a global login lockdown. internal/controller/usercontroller.go...

CVE-2026-77582 Tinyauth: User enumeration attack by timing oracle

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/usercontroller.go loginHandler and...

CVE-2026-77582

The Tinyauth authentication and authorization server is vulnerable to a user enumeration attack via a timing oracle in versions prior to 5.1.0 . The root cause is located in internal/controller/user_controller.go (loginHandler), internal/middleware/context_middleware.go (basicAuth), and internal/...

CVE-2026-77582 Tinyauth: User enumeration attack by timing oracle

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/usercontroller.go loginHandler and...

CVE-2026-77582 Tinyauth: User enumeration attack by timing oracle

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/usercontroller.go loginHandler and...

CVE-2026-77560

The Tinyauth authentication and authorization server (versions

CVE-2026-77560 Tinyauth: forward-auth per-app ACL is matched case-sensitively against the (case-insensitive) hostname, letting an authenticated user reach apps they are not on the allowlist for

Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth compares forwarded hostnames case-sensitively while reverse proxies route equivalent hostnames case-insensitively, allowing an authenticated low-privilege user to bypass per-app access controls with a differently cas...

CVE-2026-77560 Tinyauth: forward-auth per-app ACL is matched case-sensitively against the (case-insensitive) hostname, letting an authenticated user reach apps they are not on the allowlist for

Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth compares forwarded hostnames case-sensitively while reverse proxies route equivalent hostnames case-insensitively, allowing an authenticated low-privilege user to bypass per-app access controls with a differently cas...

CVE-2026-77560 Tinyauth: forward-auth per-app ACL is matched case-sensitively against the (case-insensitive) hostname, letting an authenticated user reach apps they are not on the allowlist for

Tinyauth is an authentication and authorization server. Prior to 5.1.2, Tinyauth compares forwarded hostnames case-sensitively while reverse proxies route equivalent hostnames case-insensitively, allowing an authenticated low-privilege user to bypass per-app access controls with a differently cas...

CVE-2026-77561: Improper Restriction of Excessive Authentication Attempts

Tinyauth is an authentication and authorization server. Prior to 5.1.0, an unauthenticated remote attacker can send POST /api/user/login requests with 257 distinct nonexistent usernames to fill MaxLoginAttemptRecords and activate a global login lockdown. internal/controller/usercontroller.go...