CVE-2026-42782
High
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.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Apache Syncope
PublishedMay 25, 2026
First seenMay 25, 2026
Weakness typeCWE-653CWE-653
How to fix
Update
- apache syncope4.0.6 or later
- org.apache.syncope.core:syncope-core-spring4.0.6, 4.1.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache syncope | 3.0.0 ≤ v ≤ 3.0.16, 4.0.0 ≤ v < 4.0.6, 4.1.0 | 4.0.6 |
| org.apache.syncope.core:syncope-core-springMaven | 3.0.0-M0 ≤ v ≤ 3.0.16, 4.0.0-M0 ≤ v < 4.0.6, 4.1.0-M0 ≤ v < 4.1.1 | 4.0.6, 4.1.1 |
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