CVE-2021-42646: WSO2 API Manager

Critical severity, CVSS 9.1. EPSS: 3.8% chance of exploitation in the next 30 days.

XML External Entity (XXE) vulnerability in the file based service provider creation feature of the Management Console in WSO2 API Manager 2.6.0, 3.0.0, 3.1.0, 3.2.0, and 4.0.0; and WSO2 IS as Key Manager 5.7.0, 5.9.0, and 5.10.0; and WSO2 Identity Server 5.7.0, 5.8.0, 5.9.0, 5.10.0, and 5.11.0. Allows attackers to gain read access to sensitive information or cause a denial of service via crafted GET requests.

Affected products

• WSO2 API Manager: version 2.6.0 only; version 3.0.0 only; version 3.1.0 only; version 3.2.0 only; version 4.0.0 only
• WSO2 Identity Server: version 5.7.0 only; version 5.8.0 only; version 5.9.0 only; version 5.10.0 only; version 5.11.0 only
• WSO2 Identity Server As Key Manager: version 5.7.0 only; version 5.9.0 only; version 5.10.0 only

Published 2022-05-11. Last modified 2026-06-17.