CVE-2026-42782 Details
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.
A vulnerability allowing post-authentication remote code execution has been identified in Apache Syncope versions 3.0 through 3.0.16, 4.0 through 4.0.5, and 4.1.0. This issue arises from improper isolation or compartmentalization, enabling an administrator with the right entitlements to create a malicious Groovy class. The untrusted code can bypass sandboxing and execute through the class's static initializer.
Users are advised to upgrade to Apache Syncope versions 4.0.6 or 4.1.1, which address this vulnerability by ensuring that even static initializers in Groovy code are executed in a sandboxed environment.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/05/25/4 | CVE | Mailing ListThird Party Advisory |
| https://lists.apache.org/thread/b869ms0ofrd129f7tgsn9flxgv9ztg2r | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-653 | Improper Isolation or Compartmentalization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache syncope | >= 3.0.0, <= 3.0.16 >= 4.0.0, < 4.0.6 4.1.0 |
CPE
Remediation
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Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| May 27, 2026 | CVE Modified | CISA-ADP |
| May 27, 2026 | Initial Analysis | [email protected] |
| May 25, 2026 | CVE Modified | CVE |
| May 25, 2026 | New CVE Received | [email protected] |