Security Advisory WSO2-2022-2019

Published: February 27, 2023

Version: 1.0.0

Severity: Medium

CVSS Score: 6.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)


  • WSO2 API Manager : 4.0.0 , 3.2.0 , 3.1.0
  • WSO2 IS as Key Manager : 5.10.0
  • WSO2 Identity Server : 5.11.0 , 5.10.0


Improper access control on resources when using multiple tenants.


Due to the improper implementation of cache control, one tenant IDP can access other tenant IDP's resources.


By exploiting this issue, malicious actors from one tenant can access IDP resources from a different tenant. However, the CIA's impact is dependent on the benefits that can be obtained.


If the latest version of the affected WSO2 product is not mentioned under the affected product list, you may migrate to the latest version to receive security fixes.

Otherwise, you may apply the relevant fixes to the product based on the public fix(s):


If you are a WSO2 customer with a support subscription, use WSO2 Updates in order to apply the fix.