Unrated severityNVD Advisory· Published Jul 20, 2026· Updated Jul 21, 2026
Apache Syncope: Remote Code Execution via Scripted Connector
CVE-2026-53421
Description
Improper Isolation or Compartmentalization vulnerability in Apache Syncope.
An administrator with adequate entitlements can achieve remote code execution through the connector subsystem by relying on scripted connectors' (REST and SQL) capability to run Groovy scripts.
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 by hardening the Groovy security sandbox.
Affected products
1Patches
Vulnerability mechanics
References
1- lists.apache.org/thread/nmzvz6gb2ldm30wvyk613r8dfrb6r8yxmitrevendor-advisory
News mentions
1- Apache Syncope Release Patches for Multiple RCE and SQL Injection VulnerabilitiesCyber Security News · Jul 24, 2026