Dashboard / CVE-2026-53405

CVE-2026-53405

CRITICAL
INFO Priority: 0.07 BB Relevance: 80/100
Published: 2026-07-20 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
apache syncope 3.0.0 – 3.0.16
apache syncope 4.0.0 – 4.0.7
apache syncope 4.1.0 – 4.1.2

References & Advisories (2)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.75%
Raw Score 0.007460
Percentile 54.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00746
2026-10-28
0.00746

Intelligence Sources

nvd ref →

External Links