CVE-2024-1248: WSO2 API Manager

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The silent Just-In-Time (JIT) provisioning feature in federated authentication implementations fails to properly segregate user roles during account creation when a federated user shares a username with a local user. This allows the provisioning process to overwrite existing roles of local users with roles assigned to the federated user. Exploitation requires a federated identity provider (IDP) with silent JIT provisioning enabled and an attacker's knowledge of a local user's username. When these conditions are met, a malicious individual can leverage the JIT provisioning process to modify the roles of local users. The overwritten roles are limited to those defined within the federated IDP, typically granting minimal access rights unless explicitly configured otherwise by the federated IDP administrator.

Affected products

• WSO2 API Manager: from 3.0.0, before 3.0.0.153 (fixed in 3.0.0.153); from 3.1.0, before 3.1.0.267 (fixed in 3.1.0.267); from 3.2.0, before 3.2.0.351 (fixed in 3.2.0.351); from 4.0.0, before 4.0.0.269 (fixed in 4.0.0.269); from 4.1.0, before 4.1.0.169 (fixed in 4.1.0.169)
• WSO2 Identity Server: from 5.8.0, before 5.8.0.101 (fixed in 5.8.0.101); from 5.9.0, before 5.9.0.138 (fixed in 5.9.0.138); from 5.10.0, before 5.10.0.284 (fixed in 5.10.0.284); from 5.11.0, before 5.11.0.321 (fixed in 5.11.0.321)
• WSO2 Identity Server As Key Manager: from 5.9.0, before 5.9.0.148 (fixed in 5.9.0.148); from 5.10.0, before 5.10.0.280 (fixed in 5.10.0.280)
• WSO2 Open Banking AM: from 2.0.0, before 2.0.0.313 (fixed in 2.0.0.313)
• WSO2 Open Banking Iam: from 2.0.0, before 2.0.0.333 (fixed in 2.0.0.333)

Published 2026-07-04. Last modified 2026-07-09.