CVE-2026-50157
Published:July 14, 2026
Updated:August 02, 2026
Description Applications built with the Auth0 Symphony SDK, using the Authorizer security authenticator to protect HTTP routes may accept OAuth 2.0 bearer access tokens provided through a URL query parameter, in addition to the standard Authorization header, which may increase the risk of access token exposure and replay against protected API endpoints. Resolution Upgrade auth0/symfony to version 5.9.0 or greater. Acknowledgement Okta would like to thank Alex Yeara for their discovery.
Affected Packages
https://github.com/auth0/symfony.git (GITHUB):
Affected version(s) >=5.0.0-BETA0 <5.9.0Fix Suggestion:
Update to version 5.9.0auth0/symfony (PHP):
Affected version(s) >=5.0.0-BETA0 <5.9.0Fix Suggestion:
Update to version 5.9.0Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE