CVE-2026-42782

CVE-2026-42782: Apache Syncope: Post-auth RCE via Groovy static

Vendor Apache Software Foundation
Product Apache Syncope
Weakness CWE-653
Published May 25, 2026
Last update May 27, 2026

CVSS base score

What the vulnerability does

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.

Key dates

Disclosure timeline

May 25, 2026 CVE published
May 27, 2026 Record updated