CVE-2026-50157
Auth0 Symfony: Bearer Token Accepted via URL Query Parameter in Auth0 Symfony SDK
- State
- Published
- Severity
- 6.5 Medium
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Reserved
- Jun 3, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
- CWE-598 Use of GET Request Method With Sensitive Query Strings
Affected Products
| Product | Versions |
|---|---|
symfonyauth0 |
|
References
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