CVE-2026-63071

EUVD-2026-45955
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 52.58%
Affected Products (NVD)
VendorProductVersion
apachesyncope
3.0.0 ≤
𝑥
≤ 3.0.16
apachesyncope
4.0.0 ≤
𝑥
< 4.0.7
apachesyncope
4.1.0 ≤
𝑥
< 4.1.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://lists.apache.org/thread/2236mlm6hbvs6g16yqz5y9s8bb7q1lo1
http://www.openwall.com/lists/oss-security/2026/07/20/11