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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.

PUBLISHED Reserved 2026-04-29 | Published 2026-05-25 | Updated 2026-05-27 | Assigner apache

Problem types

CWE-653 Improper Isolation or Compartmentalization

Product status

Default status
unaffected

3.0 (semver)
affected

4.0 (semver)
affected

4.1 (semver)
affected

Credits

Trung Nguyen, CyStack finder

References

www.openwall.com/lists/oss-security/2026/05/25/4

lists.apache.org/thread/b869ms0ofrd129f7tgsn9flxgv9ztg2r vendor-advisory

cve.org (CVE-2026-42782)

nvd.nist.gov (CVE-2026-42782)

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