CVE-2026-42782CWE-653

Apache Syncope: Post-auth RCE via Groovy static

High · published May 25, 2026

CVSS v3.1
7.2
EPSS
1%
Percentile
58.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00865 · 58.2th percentile
Weakness
CWE-653 · Improper Isolation or Compartmentalization
Published
2026-05-25T14:58Z
EPSS history
Timeline
  • 25 MAY 14:58Z
    Apache Syncope: Post-auth RCE via Groovy static
    cvelistv5