CVE-2026-62183: Apache Syncope

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Improper Privilege Management vulnerability in Apache Syncope. When: * the all-Java user workflow adapter is configured, or * the Flowable user workflow adapter is configured, bearing a BPMN definition not requiring admin approval for user self registration of self update requests the following scenario could happen. A REST API call can allow the user to grant themselves one or more of defined Roles, thus gaining their Entitlements and becoming in fact an administrator; the actual Entitlements gained depend on the Roles that are effectively defined on the specific Syncope deployment. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

Affected products

• Apache Syncope: from 3.0.0, up to and including 3.0.16; from 4.0.0, before 4.0.7 (fixed in 4.0.7); from 4.1.0, before 4.1.2 (fixed in 4.1.2)

Published 2026-07-20. Last modified 2026-07-27.