What is GHSA-xvr8-rwv3-hv45?

GHSA-xvr8-rwv3-hv45 is a security advisory published by GitHub Security Advisories with Critical severity. Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator...

Which CVE IDs does GHSA-xvr8-rwv3-hv45 cover?

GHSA-xvr8-rwv3-hv45 covers the following CVE IDs: CVE-2026-53405. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xvr8-rwv3-hv45?

GHSA-xvr8-rwv3-hv45 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-xvr8-rwv3-hv45CriticalCVSS 9.8

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator...

Vendor

GitHub Security Advisories

Published

July 20, 2026

Last Modified

July 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-53405 →

📋 Description

Improper Isolation or Compartmentalization vulnerability in Apache Syncope.

An administrator with adequate entitlements can import arbitrary BPMN process definitions via the REST API and then start the process. When a BPMN process containing a Groovy scriptTask is imported and started, the Groovy script is executed directly on the server, with no 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 wrapping Flowable's Groovy scriptTasks with security sandbox.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-53405
https://lists.apache.org/thread/vdq0tk6ylffz6trbgbllj9kb1ndzff7k
http://www.openwall.com/lists/oss-security/2026/07/20/6
https://github.com/advisories/GHSA-xvr8-rwv3-hv45