CVE-2026-53421 Details
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.
A remote code execution vulnerability has been identified in Apache Syncope versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.6, and 4.1.0-M0 through 4.1.1. This vulnerability arises from improper isolation in the connector subsystem, allowing an administrator with sufficient entitlements to execute arbitrary code by leveraging the capability of scripted connectors (REST and SQL) to run Groovy scripts.
Users are advised to upgrade to Apache Syncope versions 4.0.7 or 4.1.2, which address this vulnerability by enhancing the security sandbox for Groovy scripts.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/07/20/7 | CVE | Mailing ListThird Party Advisory |
| https://lists.apache.org/thread/nmzvz6gb2ldm30wvyk613r8dfrb6r8yx | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-653 | Improper Isolation or Compartmentalization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache syncope | >= 3.0.0, <= 3.0.16 >= 4.0.0, < 4.0.7 >= 4.1.0, < 4.1.2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 27, 2026 | Initial Analysis | [email protected] |
| Jul 21, 2026 | CVE Modified | CISA-ADP |
| Jul 20, 2026 | CVE Modified | CVE |
| Jul 20, 2026 | New CVE Received | [email protected] |