CVE-2026-85473 is a vulnerability in the Auth0 java-jwt library where parsing JWT tokens with out-of-range timestamp claims (exp, nbf, iat) can cause thread termination. This occurs before signature verification and may degrade service availability if exploited repeatedly.
CVE-2026-107371 is a medium severity vulnerability in the Auth0 auth0.js library where the authorize() method does not properly validate the auth_time claim in the ID token against the requested maxAge parameter. This can cause applications to accept ID tokens representing authentication events older than intended, potentially weakening session expiration controls.
CVE-2026-107370 is a vulnerability in the Auth0 auth0-lock library where, under certain conditions involving Active Directory usernames formatted as domains without a local part, authentication requests use the GET method instead of POST. This causes sensitive user form data to be included in the URL query string, potentially exposing it in logs or browser history. The issue affects versions from 10.9.0 up to but not including 13.2.1, and from 14.0.0 up to but not including 15.0.2. The CVSS score is 5.3, indicating a medium severity impact primarily due to confidentiality concerns. There is no information provided about patches or vendor advisories. No known exploits are reported in the wild.
CVE-2026-107369 is an open redirect vulnerability in the Auth0 nextjs-auth0 SDK. The SDK attempts to validate the returnTo parameter as a same-origin URL but reconstructs it in a way that browsers may interpret as an absolute or scheme-relative URL, allowing redirection to unintended external domains. This can lead to potential phishing or redirection attacks after authentication.
Auth0 Symfony is a Symfony SDK for Auth0 Authentication and Management APIs. From 5.0.0-BETA0 until 5.9.0, the Authorizer::authenticate() and Authorizer::supports() paths in the Authorizer security authenticator may accept OAuth 2.0 bearer access tokens from the token URL query parameter as well as the Authorization header for protected HTTP routes. Query-string tokens can be recorded in server logs, browser history, or referrer data and then replayed against protected API endpoints. This issue is fixed in version 5.9.0.
The react-native-auth0 SDK's web platform implementation does not scope its in-memory token cache to individual user sessions when operating in a server-side rendering (SSR) environment where module state persists across HTTP requests. Under the listed preconditions, tokens cached in module memory can be retrieved across subsequent requests processed by the same server runtime.
The Auth0 AD/LDAP Connector improperly processes a configuration value during service startup. This allows a low-privileged user on the host system to modify the connector's configuration. When the service restarts, the modified configuration can lead to code execution with the privileges of the service account.
The Auth0 AD/LDAP Connector is vulnerable to stored Cross-Site Scripting (XSS) issues due to improper HTML encoding of data in search results and updater log content displayed in the admin panel. An authenticated user with privileges to modify directory attributes, or a low-privileged local user on the host where the connector is installed, could insert script content. This script content could then execute in an administrator's browser when they view the affected search results or update logs.
The administrative panel of the Auth0 AD/LDAP Connector (versions 6.5.0 and earlier) listens on the local loopback interface without requiring authentication. This allows a local, low-privileged user or process on the host system to access the panel's management endpoints without credentials. Through these endpoints, a local user can read configuration details, including plaintext Active Directory service account credentials, and modify connector settings.
A vulnerability exists in Auth0.js versions 8.11.0 through 9.32.0 where, under specific conditions, the SDK may improperly return user profile information when presented with a valid access token and a specifically crafted invalid ID token. This incorrect authorization issue is identified as CWE-863 and is fixed in version 10.0.0. The vulnerability has a CVSS score of 7.
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if their project uses both the vulnerable versions and the proxy handler /me/* and /my-org/* with DPoP enabled. This issue has been fixed in version 4.18.0.
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.
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.
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which could allow attackers to inject unintended OAuth query parameters into the Auth0 authorization request. Successful exploitation may result in tokens being issued with unintended parameters. This issue is fixed in version 4.13.0.
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. When using versions 4.11.0 through 4.11.2 and 4.12.0, simultaneous requests on the same client may result in improper lookups in the TokenRequestCache for the request results. This issue is fixed in versions 4.11.2 and 4.12.1.
auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the jws.createVerify() function for HMAC algorithms and use user-provided data from the JSON Web Signature protected header or payload in HMAC secret lookup routines, which can allow attackers to bypass signature verification. This issue has been patched in versions 3.2.3 and 4.0.1.
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.
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In Auth0 Next.js SDK versions 4.0.1 through 4.6.0, `__session` cookies set by auth0.middleware may be cached by CDNs due to missing Cache-Control headers. Three preconditions must be met in order for someone to be affected by the vulnerability: Applications using the NextJS-Auth0 SDK, versions between 4.0.1 to 4.6.0, applications using CDN or edge caching that caches responses with the Set-Cookie header, and if the Cache-Control header is not properly set for sensitive responses. Users should upgrade auth0/nextjs-auth0 to v4.6.1 to receive a patch.
Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. Versions 8.0.0-BETA3 prior to 8.3.1 contain a vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data. Applications using the Auth0-PHP SDK are affected, as are applications using the Auth0/symfony, Auth0/laravel-auth0, or Auth0/wordpress SDKs, because those SDKsrely on the Auth0-PHP SDK versions from 8.0.0-BETA3 until 8.14.0. Version 8.3.1 contains a patch for the issue.