Unauthorized Document Exposure via Auth0 AI Retrieval FGA Bypass

The auth0-ai-python FGA retriever does not distinguish between authorization checks under different users, relations, or conditions when filtering documents during retrieval-augmented generation, resulting in documents denied by Auth0 FGA being included in the model context and used in the generated response.

The auth0-ai-js FGA retriever does not distinguish between authorization checks under different conditions when filtering documents during retrieval-augmented generation, resulting in documents denied by Auth0 FGA being included in the model context and used in the generated response.

Missing Verification of auth_time Claim in auth0.js

When the authorize() method is called with a maxAge parameter, the auth0.js library does not validate the auth_time claim in the resulting ID token against the requested maxAge value. As a result, an application may process an ID token that represents an authentication event older than the requested maximum age.

Auth0-PHP SDK has Improper Audience Validation

Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens. Projects are affected if they use Auth0-PHP SDK versions between v8.0.0 and v8.17.0, or applications using the following SDKs that rely on the Auth0-PHP SDK versions between v8.0.0 and v8.17.0: Auth0/symfony versions between 5.0.0 and 5.5.0, Auth0/laravel-auth0 versions between 7.0.0 and 7.19.0, and/or Auth0/wordpress plugin versions between 5.0.0-BETA0 and 5.4.0. Auth0/Auth0-PHP version 8.18.0 contains a patch for the issue.

Improper Permission Checking in Auth.js SDK

Auth0.js is a client-side JavaScript library for Auth0. From 8.11.0 to 9.32.0, under specific preconditions, the Auth0.js SDK may improperly return user profile information using a valid access token when a specifically crafted invalid ID token is provided. This vulnerability is fixed in 10.0.0.

auth0-PHP: Improper File Type Handling in Bulk User Import

auth0-PHP is an SDK for Auth0 Authentication and Management APIs. In versions 3.3.0 through 8.16.0, the Bulk User Import endpoint in applications built with the SDK does not validate the file-path wrapper or value. Without proper validation, affected applications may accept arbitrary file paths or URLs. The vulnerability affects any application that either directly uses the Auth0-PHP SDK (versions 3.3.0–8.16.0) or indirectly relies on those versions through the Auth0/symfony, Auth0/laravel-auth0, or Auth0/wordpress SDKs. This issue is fixed in version 8.17.0.

Auth0 PHP SDK Insufficient Entropy in Cookie Encryption

Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. From version 8.0.0 to before version 8.19.0, in applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. This issue has been patched in version 8.19.0.

A cross-origin vulnerability has been discovered in the Auth0 auth0.js library affecting versions < 8.12. This vulnerability allows an attacker to acquire authenticated users' tokens and invoke services on a user's behalf if the target site or application uses a popup callback page with auth0.popup.callback().

Information disclosure through error object

auth0.js (NPM package auth0-js) greater than version 8.0.0 and before version 9.12.3 has a vulnerability. In the case of an (authentication) error, the error object returned by the library contains the original request of the user, which may include the plaintext password the user entered. If the error object is exposed or logged without modification, the application risks password exposure. This is fixed in version 9.12.3

Authorization header is not sanitized in an error object in auth0

In auth0 (npm package) versions before 2.27.1, a DenyList of specific keys that should be sanitized from the request object contained in the error object is used. The key for Authorization header is not sanitized and in certain cases the Authorization header value can be logged exposing a bearer token. You are affected by this vulnerability if you are using the auth0 npm package, and you are using a Machine to Machine application authorized to use Auth0's management API

Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error message when it cannot successfully validate the JWT signature. If this error message is presented to an attacker, they can forge an arbitrary JWT token that will be accepted by the vulnerable application.

Auth0 auth0.net before 6.5.4 has Incorrect Access Control because IdentityTokenValidator can be accidentally used to validate untrusted ID tokens.

The Auth0 Auth0.js library before 9.3 has CSRF because it mishandles the case where the authorization response lacks the state parameter.

CSRF exists in the Auth0 authentication service through 14591 if the Legacy Lock API flag is enabled.

The Auth0 authentication service before 2017-10-15 allows privilege escalation because the JWT audience is not validated.