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OpenAdvisories
Medium · 4.9 CVE-2024-8995 EUVD-2024-55706GHSA-66c7-2f58-rwhj

Authorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthorized Access

Published Aug 6, 2026 · Updated Aug 6, 2026 · Assigned by WSO2

Description

Unused authorization codes issued to deleted users are not being properly invalidated or removed from the system. This allows for the persistence of these codes, enabling them to be potentially reused.

If an attacker possesses both the authorization code and the associated client credentials (client ID and client secret), they can leverage these unused codes to obtain access tokens on behalf of users who have already been deleted. This may lead to unauthorized access to sensitive resources and services, contingent on the scopes originally authorized for the compromised authorization code.

Affected products

VendorProductAffectedFixed
WSO2 WSO2 API Manager 3.1.0 – < 3.1.0.320, 3.2.0 – < 3.2.0.413, 3.2.1 – < 3.2.1.90, 4.0.0 – < 4.0.0.334, 4.1.0 – < 4.1.0.255, 4.2.0 – < 4.2.0.195, 4.3.0 – < 4.3.0.106, 4.4.0 – < 4.4.0.70, 4.5.0 – < 4.5.0.55, 4.6.0 – < 4.6.0.19 3.1.0.320
WSO2 WSO2 Traffic Manager 4.5.0 – < 4.5.0.54, 4.6.0 – < 4.6.0.19 4.5.0.54
WSO2 WSO2 API Control Plane 4.5.0 – < 4.5.0.56, 4.6.0 – < 4.6.0.20 4.5.0.56
WSO2 WSO2 Universal Gateway 4.5.0 – < 4.5.0.55, 4.6.0 – < 4.6.0.19 4.5.0.55
WSO2 WSO2 Open Banking AM 2.0.0 – < 2.0.0.369 2.0.0.369
WSO2 WSO2 Identity Server 5.10.0 – < 5.10.0.345, 5.11.0 – < 5.11.0.395, 6.0.0 – < 6.0.0.229, 6.1.0 – < 6.1.0.208 5.10.0.345
WSO2 WSO2 Open Banking IAM 2.0.0 – < 2.0.0.389 2.0.0.389
WSO2 WSO2 Identity Server as Key Manager 5.10.0 – < 5.10.0.338 5.10.0.338
WSO2 WSO2 Carbon OAuth 6.4.2 – < 6.4.2.154, 6.4.111 – < 6.4.111.131, 6.4.176 – < 6.4.176.35, 6.4.180 – < 6.4.180.17, 6.8.0 – < 6.8.0.46, 6.9.6 – < 6.9.6.34, 6.11.21 – < 6.11.21.59, 6.13.16 – < 6.13.16.27, 6.13.19 – < 6.13.19.19, 6.13.27 – < 6.13.27.15, 6.13.41 – < 6.13.41.4 6.4.2.154

References