GO-2026-6552 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 in github.com/tinyauthapp/tinyauth

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 in github.com/tinyauthapp/tinyauth...

CVE-2026-97736

tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression...

CVE-2026-97736

tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression...

EUVD-2026-86515

tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression...

CVE-2026-97736

The tinyauth application, prior to version 5.1.3 , is vulnerable to a rule bypass flaw. An attacker can bypass security rules by appending an allowed route string, which is made possible by an unanchored regular expression . No specific exploit details or remediation steps are provided in the doc...

CVE-2026-97736

tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression...

CVE-2026-97736

tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression...

CVE-2026-77560

creationtimestamp| type| source ---|---|--- 2026-09-22 22:35:25+00:00| published-proof-of-concept| https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-328g-jx67-v94g...

GHSA-9XHM-W3WJ-XHQH Tinyauth: Unauthenticated login attempts can trigger global login lockdown denial of service

Summary Tinyauth's login rate-limit bookkeeping can enter a global lockdown mode when its in-memory login-attempt map reaches 256 distinct identifiers. Because unauthenticated POST /api/user/login requests for unknown usernames are recorded in this same map, a remote unauthenticated attacker can...

Tinyauth: Unauthenticated login attempts can trigger global login lockdown denial of service

Summary Tinyauth's login rate-limit bookkeeping can enter a global lockdown mode when its in-memory login-attempt map reaches 256 distinct identifiers. Because unauthenticated POST /api/user/login requests for unknown usernames are recorded in this same map, a remote unauthenticated attacker can...

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: 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 GitHub Advisory Details form fields — paste-ready Affected products | Field | Value | |-------|-------| | Ecosystem |...

GHSA-328G-JX67-V94G 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: 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 GitHub Advisory Details form fields — paste-ready Affected products | Field | Value | |-------|-------| | Ecosystem |...

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 ...

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-2026-77561

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-2026-77560

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: 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-2026-77561

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...