CVE-2026-53421: CWE-653 Improper Isolation or Compartmentalization in Apache Software Foundation Apache Syncope
Apache Syncope versions from 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 contain an improper isolation vulnerability. This flaw allows an administrator with sufficient entitlements to achieve remote code execution via the connector subsystem by exploiting Groovy script execution in scripted connectors. The issue is resolved in versions 4.0.7 and 4.1.2 by hardening the Groovy security sandbox.
AI Analysis
Technical Summary
CVE-2026-53421 is an improper isolation or compartmentalization vulnerability (CWE-653) in Apache Syncope's connector subsystem. Administrators with appropriate privileges can leverage scripted connectors that run Groovy scripts (REST and SQL connectors) to execute arbitrary code remotely. The vulnerability affects 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. The Apache Software Foundation fixed this issue by enhancing the Groovy security sandbox in versions 4.0.7 and 4.1.2.
Potential Impact
Successful exploitation results in remote code execution with administrator privileges, leading to full compromise of the affected system. Confidentiality, integrity, and availability impacts are all rated high due to the ability to execute arbitrary code remotely without user interaction.
Mitigation Recommendations
Users should upgrade Apache Syncope to versions 4.0.7 or 4.1.2, which include fixes that harden the Groovy security sandbox to prevent this vulnerability. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending these versions.
CVE-2026-53421: CWE-653 Improper Isolation or Compartmentalization in Apache Software Foundation Apache Syncope
Description
Apache Syncope versions from 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 contain an improper isolation vulnerability. This flaw allows an administrator with sufficient entitlements to achieve remote code execution via the connector subsystem by exploiting Groovy script execution in scripted connectors. The issue is resolved in versions 4.0.7 and 4.1.2 by hardening the Groovy security sandbox.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53421 is an improper isolation or compartmentalization vulnerability (CWE-653) in Apache Syncope's connector subsystem. Administrators with appropriate privileges can leverage scripted connectors that run Groovy scripts (REST and SQL connectors) to execute arbitrary code remotely. The vulnerability affects 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. The Apache Software Foundation fixed this issue by enhancing the Groovy security sandbox in versions 4.0.7 and 4.1.2.
Potential Impact
Successful exploitation results in remote code execution with administrator privileges, leading to full compromise of the affected system. Confidentiality, integrity, and availability impacts are all rated high due to the ability to execute arbitrary code remotely without user interaction.
Mitigation Recommendations
Users should upgrade Apache Syncope to versions 4.0.7 or 4.1.2, which include fixes that harden the Groovy security sandbox to prevent this vulnerability. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-09T10:22:09.599Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5e33e12a4a8d598937d22a
Added to database: 07/20/2026, 14:42:41 UTC
Last enriched: 07/30/2026, 13:23:24 UTC
Last updated: 09/01/2026, 22:52:12 UTC
Views: 72
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