Vulnerability details
CVE-2026-53405
Apache Software Foundation Apache Syncope
Apache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask
CVSS 3.1
9.8Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Syncope | 3.0.0-M0 ≤ v ≤ 3.0.16 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Syncope | 4.0.0-M0 ≤ v ≤ 4.0.6 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Syncope | 4.1.0-M0 ≤ v ≤ 4.1.1 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-07-20
- Last updated
- 2026-07-21
- State
- Published
- Assigner (CNA)
- apache
Exploit prediction (EPSS)
0.74%
Probability of exploitation in 30 days
55%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-653Improper Isolation or Compartmentalization