CVE-2026-113511: Apache Syncope: Delegated administration boundaries can be bypassed for Realm update

[Francesco Chicchiriccò <ilgrosso () apache org>]

Severity: important 

Affected versions:

- Apache Syncope 3.0.0-M0 through 3.0.16
- Apache Syncope 4.0.0-M0 through 4.0.8
- Apache Syncope 4.1.0-M0 through 4.1.3

Description:

Authorization bypass through User-Controlled key vulnerability in Apache Syncope.



A delegated administrator can relocate a Realm subtree across administrative realm boundaries without permission for 
the destination
This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.8, from 4.1.0-M0 through 
4.1.3.



Users are recommended to upgrade to version 4.0.9 / 4.1.4, which fix this issue.

Credit:

Muted Cybersecurity (finder)

References:

https://syncope.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-113511