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Mallory
High

Remote Code Execution in Apache Syncope Groovy Custom Implementations

IdentifiersCVE-2025-57738CWE-94

Apache Syncope allows deployments to extend core behavior by supplying custom implementations of selected Java interfaces as either Java or Groovy classes. Because Groovy-based implementations support runtime reload and were not adequately sandboxed, a malicious administrator could inject arbitrary Groovy code that would then be executed by the running Apache Syncope Core instance. The issue affects the customization mechanism itself rather than a separate plugin component, and the vendor-fixed versions enforce sandboxing for Groovy execution.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows a malicious administrator to achieve remote code execution in the context of the Apache Syncope Core instance. This can enable arbitrary command execution, compromise of the Syncope application and its managed data, abuse of the application's privileges and integrations, and potentially further movement or persistence depending on the privileges of the Syncope runtime environment.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround is provided beyond upgrading. Until patched, restrict administrative access to trusted users only, review and tightly control who can upload or modify custom Groovy implementations, and monitor Syncope administrative actions and runtime customization changes for suspicious code injection attempts.

Remediation

Patch, then assume compromise.

Upgrade Apache Syncope to version 3.0.14 or 4.0.2 or later. These releases address the issue by forcing Groovy code to run in a sandbox, preventing arbitrary unsandboxed code execution through custom Groovy implementations.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Apache Software FoundationSyncopeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

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Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

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