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Message-ID: <d55ce1db-6317-6d3d-2f43-990944c38003@apache.org>
Date: Mon, 25 May 2026 12:32:42 +0000
From: Francesco Chicchiriccò <ilgrosso@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-42782: Apache Syncope: Post-auth RCE via Groovy static
Severity: moderate
Affected versions:
- Apache Syncope (org.apache.syncope.core:syncope-core-spring) 3.0 through 3.0.16
- Apache Syncope (org.apache.syncope.core:syncope-core-spring) 4.0 through 4.0.5
- Apache Syncope (org.apache.syncope.core:syncope-core-spring) 4.1 through 4.1.0
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.
Credit:
Trung Nguyen, CyStack (finder)
References:
https://syncope.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-42782
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