by Kastro
Paper/Archive/CVE-2026-63071

CVE-2026-63071

Apache Software Foundation Apache Syncope — Apache Syncope: RCE via Groovy Sandbox bypass

EPSS 0.8%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 55.0.550 × 2011.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Apache Syncope3.0.0-M0 – 3.0.16–CNA
Apache Syncope4.0.0-M0 – 4.0.6–CNA
Apache Syncope4.1.0-M0 – 4.1.1–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorylists.apache.org/thread/2236mlm6hbvs6g16yqz5y9s8bb7q1lo1refopenwall.com/lists/oss-security/2026/07/20/11