CVE-2026-53421 — Apache Syncope: Remote Code Execution via Scripted Connector

Description (CNA)

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 (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Syncope	affected 3.0.0-M0 through 3.0.16; affected 4.0.0-M0 through 4.0.6; affected 4.1.0-M0 through 4.1.1

CWE

CWE-653

References

https://lists.apache.org/thread/nmzvz6gb2ldm30wvyk613r8dfrb6r8yx

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/07/20/7

CISA-ADP

No English description supplied.

No references supplied.