CVE-2026-53728 Medplum - Improper Validation of Redirect URI in External Auth Callback allows Authorization Code Leakage

Medplum is a developer platform that enables development of healthcare apps. Prior to version 5.1.6, the external identity provider callback at GET /auth/external accepts attacker-controlled redirect URIs that only need to start with a registered client redirect URI, rather than matching exactly...

GHSA-M44R-7C5H-M6MJ Medplum: Improper Validation of Redirect URI in External Auth Callback allows Authorization Code Leakage

Summary The external identity provider callback at GET /auth/external accepts attacker-controlled redirect URIs that only need to start with a registered client redirect URI, rather than matching exactly. After a successful external IdP login, the server appends Medplum login and code values to...

Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint

Summary The OIDC authorization endpoint allows users with a TOTP-pending session password verified, TOTP not yet completed to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. Details...

EUVD-2020-19412

Malware in sbrugna...

CVE-2019-11269

CVE-2019-11269 affects Spring Security OAuth; an open-redirect at the authorization endpoint (redirect_uri) can leak the authorization code. Affected versions: 2.3 before 2.3.6, 2.2 before 2.2.5, 2.1 before 2.1.5, 2.0 before 2.0.18, and older unsupported versions. Attack requires a crafted reques...

CVE-2019-3778

Spring Security OAuth, versions 2.3 prior to 2.3.5, and 2.2 prior to 2.2.4, and 2.1 prior to 2.1.4, and 2.0 prior to 2.0.17, and older unsupported versions could be susceptible to an open redirector attack that can leak an authorization code. A malicious user or attacker can craft a request to th...