Incorrect authorization in Apache Syncope - CVE-2026-73668
Published: September 15, 2026
Vulnerability identifier: #VU149986
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-73668
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose confidential Connector configuration values from another Realm.
The vulnerability exists due to incorrect authorization in REST access control for Connector configurations when retrieving a full Connector configuration scoped to another Realm. A remote privileged user can read confidential properties through REST to disclose confidential Connector configuration values from another Realm.
The disclosed configuration can be used to duplicate the Connector instance into a Realm where the user has administration rights.
Affected software
Apache Syncope
How to mitigate CVE-2026-73668
Install security update from vendor's website.
Apache Syncope - addressed in versions 4.0.8, 4.1.3