# CVE-2026-42782

## Summary

- **CVE ID:** CVE-2026-42782
- **Severity:** HIGH
- **CVSS Score:** 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-653
- **Published:** May 25, 2026
- **Last Modified:** May 27, 2026

## Description

Improper Isolation or Compartmentalization vulnerability in Apache Syncope.

An administrator with adequate entitlements for Implementations can create a malicious Groovy class containing untrusted code reaching a non-sandboxed execution path via the class static initializer.

This issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0.



Users are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by forcing even the static initializer in Groovy code to run in a sandbox.

## Affected Products

- Apache Software Foundation — Apache Syncope (3.0)
- Apache Software Foundation — Apache Syncope (4.0)
- Apache Software Foundation — Apache Syncope (4.1)

## References

- [CNA](https://lists.apache.org/thread/b869ms0ofrd129f7tgsn9flxgv9ztg2r)
- [CVE](http://www.openwall.com/lists/oss-security/2026/05/25/4)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.65%
- **EPSS Percentile:** 49.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._