CVE-2026-42782

HIGH

Apache Syncope: Post-auth RCE via Groovy static

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2

Scores

CVSS v3 7.2
EPSS 0.0065
EPSS Percentile 46.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-653
Status published
Products (8)
apache/syncope 4.1.0
apache/syncope 3.0.0 - 3.0.16
Apache Software Foundation/Apache Syncope 3.0 - 3.0.16
Apache Software Foundation/Apache Syncope 4.0 - 4.0.5
Apache Software Foundation/Apache Syncope 4.1 - 4.1.0
org.apache.syncope.core/syncope-core-spring 3.0.0-M0 - 3.0.16Maven
org.apache.syncope.core/syncope-core-spring 4.0.0-M0 - 4.0.6Maven
org.apache.syncope.core/syncope-core-spring 4.1.0-M0 - 4.1.1Maven
Published May 25, 2026
Tracked Since May 25, 2026