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TI-2026-38491 Aliases CVE-2026-53405GHSA-xvr8-rwv3-hv45

Apache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask

Priority MEDIUM 50CWE-653Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00746 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Syncope3.0.0-M0 – 3.0.16; 4.0.0-M0 – 4.0.6; 4.1.0-M0 – 4.1.1—No fix listedCNA
  • Apache Syncope VendorApache Affected 3.0.0-M0 – 3.0.16; 4.0.0-M0 – 4.0.6; 4.1.0-M0 – 4.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*3.0.0 – 3.0.16; 4.0.0 to before 4.0.7; 4.1.0 to before 4.1.2VulnerableApache
  • cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:* Versions 3.0.0 – 3.0.16; 4.0.0 to before 4.0.7; 4.1.0 to before 4.1.2 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53405
  2. 2026-10-03 Alias added: GHSA-xvr8-rwv3-hv45

References

Advisory 2

  • TI-2025-35632 Apache Syncope: Remote Code Execution by delegated administrators CVSS 3.1HIGH 7.2
  • TI-2026-38503 Apache Syncope: Remote Code Execution via Scripted Connector CVSS 3.1CRITICAL 9.8
  • TI-2026-45025 Apache Syncope: RCE via Groovy Sandbox bypass CVSS 3.1CRITICAL 9.8
  • TI-2026-44406 Apache Syncope: User self-service privilege escalation CVSS 3.1CRITICAL 9.8
  • TI-2026-41245 Apache Syncope: SQL injection vulnerability in Audit Events search CVSS 3.1CRITICAL 9.8
  • TI-2020-01885 Injection in Apache Syncope CVSS 3.1CRITICAL 9.8
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences