CVE Catalog

CVE-2026-50157

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.51%

41th percentile - higher than 41% of all known CVEs

Summary

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.

Risk Assessment

Query-string tokens can leak through logs, browser history, or referrer data and then be replayed against protected API endpoints. This leads to unauthorized access to protected resources.

Recommendation

Upgrade Auth0 Symfony to version 5.9.0. Ensure tokens are not passed in URL query parameters.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS