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...

CVE-2026-53728

Medplum , a healthcare developer platform, is vulnerable to authorization code leakage in its external identity provider callback (GET /auth/external). The root cause is that getClientRedirectUri() accepts any redirect URI that prefix-matches a registered value (startsWith), rather than requiring...

Linux Distros Unpatched Vulnerability : CVE-2026-56854

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and...

CVE-2026-56854

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

UBUNTU-CVE-2026-56854

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

CVE-2026-56854 Source-address critical option not enforced for non-public-key auth callbacks in golang.org/x/crypto/ssh

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

CVE-2026-56854

CVE-2026-56854 affects golang.org/x/crypto/ssh . The source-address critical option in Permissions returned by authentication callbacks was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths (extending a prior fix for CVE-2026-46595). Callbacks for PasswordCallback , Keyb...

GO-2026-6303 Source-address critical option not enforced for non-public-key auth callbacks in golang.org/x/crypto/ssh

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

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...

PT-2026-40532

OAuth State Validation Bypass via error Parameter Causes Local Server DoS in MCP Auth Callback --- Description The OpenClaude MCP authentication flow starts a temporary local HTTP server to handle OAuth callbacks. To prevent CSRF attacks, the server validates a state parameter against an internal...

CVE-2023-41893 Account takeover via auth_callback login in Home Assistant Core

Home assistant is an open source home automation. The audit team’s analyses confirmed that the redirecturi and clientid are alterable when logging in. Consequently, the code parameter utilized to fetch the accesstoken post-authentication will be sent to the URL specified in the aforementioned...

Home Assistant Information Disclosure Vulnerability

Home Assistant is an open source home automation management system. The system is primarily used to control home automation devices. An information disclosure vulnerability exists in Home Assistant versions prior to 2023.9.0, which stems from a vulnerability that allows an attacker to log in and...

Cross site scripting

Querybook is an open source data querying UI. In affected versions user provided data is not escaped in the error field of the auth callback url in querybook/server/app/auth/oauthauth.py and querybook/server/app/auth/oktaauth.py. This may allow attackers to perform reflected cross site scripting...

CVE-2022-46151

CVE-2022-46151 affects Querybook, where user-provided data in the error field of the auth callback URL (oauth_auth.py and okta_auth.py) is not escaped, enabling reflected XSS if CSP is not enabled or unsafe-inline is allowed. Affected versions are before 3.14.2. Mitigation: upgrade to Querybook 3...

PT-2022-27768 · Querybook · Querybook

Name of the Vulnerable Software and Affected Versions: Querybook versions prior to 3.14.2 Description: The issue concerns Querybook, an open source data querying UI. In affected versions, user-provided data is not escaped in the error field of the auth callback URL in...

ArgoCD 跨站脚本漏洞

Argo is an open source container-native workflow engine.ArgoCD is an application. A declarative GitOps continuous delivery tool for Kubernetes. It continuously monitors running applications and compares the current live state with the desired target state e.g., configuration in a Git repository,...

PT-2022-20529 · Argo Cd · Argo Cd

Name of the Vulnerable Software and Affected Versions: Argo CD versions 2.3.0 through 2.3.5 Argo CD versions 2.4.0 through 2.4.4 Description: The issue is a cross-site scripting XSS bug that could allow an attacker to inject arbitrary JavaScript in the "/auth/callback" page in a victim's browser...