CVE-2026-63071 in Syncope
Summary
by MITRE • 07/20/2026
Improper Isolation or Compartmentalization vulnerability in Apache Syncope.
An administrator with adequate entitlements for Implementations can create a malicious Groovy class containing untrusted code bypassing the Groovy security sandbox.
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 tightening the Groovy security sandbox.
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Analysis
by VulDB Data Team • 07/20/2026
The vulnerability described represents a critical improper isolation or compartmentalization flaw in Apache Syncope that directly undermines the system's security model. This weakness allows authenticated administrators with specific entitlements to bypass established security boundaries through malicious code injection within Groovy scripting environments. The issue stems from insufficient sandboxing mechanisms that should normally prevent execution of untrusted code within the platform's implementation components.
The technical exploitation occurs when an administrator with appropriate permissions creates a malicious Groovy class containing unauthorized code that circumvents the built-in security restrictions. This represents a privilege escalation vulnerability where legitimate administrative access is weaponized to achieve unauthorized system compromise. The flaw exists in multiple version ranges spanning 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, indicating a widespread issue affecting the platform's scripting security architecture.
From an operational perspective, this vulnerability poses significant risk to organizations relying on Apache Syncope for identity management and access control. An attacker with administrative privileges could execute arbitrary code, potentially leading to full system compromise, data exfiltration, or lateral movement within the network. The impact extends beyond immediate code execution as it undermines the trust model of the identity platform, potentially affecting thousands of users whose access rights are managed through the vulnerable system.
The security implications align with CWE-276, which addresses improper privilege management and insufficient isolation mechanisms. This vulnerability also maps to ATT&CK technique T1059.007 for execution via script interpreter, specifically targeting Groovy scripting environments within enterprise identity platforms. The attack vector exploits legitimate administrative capabilities to achieve malicious code execution, making detection particularly challenging as the actions appear to originate from authorized users.
Organizations should immediately upgrade to version 4.0.7 or 4.1.2 as recommended, which implement enhanced Groovy security sandboxing measures. These updates address the root cause by strengthening isolation boundaries and implementing more robust code validation mechanisms. Additional mitigations include implementing strict access controls, monitoring administrative activities for unusual scripting behavior, and conducting thorough security reviews of existing implementations to identify potential exploitation vectors before patching becomes necessary.