CVE-2026-63071: critical vulnerability in Apache Syncope
Apache Syncope: RCE via Groovy Sandbox bypass
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Apache Software Foundation · Apache SyncopeRelated CVEs — Apache Syncope
In the same product, most dangerous first.
CVE-2025-57738HIGHApache Syncope: Remote Code Execution by delegated administratorsEPSS 23.2%CVE-2018-1322—CVE-2018-1322EPSS 19.9%CVE-2018-1321—CVE-2018-1321EPSS 17.5%CVE-2018-17186—CVE-2018-17186EPSS 2.5%CVE-2026-23795MEDIUMApache Syncope: Console XXE on Keymaster parametersEPSS 2.0%CVE-2018-17184—CVE-2018-17184EPSS 1.2%