RCE in Apache Software Foundation Syncope
CVE-2026-77147
Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can create a malicious Groovy Command class containing untrusted code in their CommandArgs static implementation, bypassing the Groovy security sandbox. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.
Vulnerability class: RCE (Remote Code Execution)
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-77147?
- CVE-2026-77147 is a medium-severity vulnerability in Apache Software Foundation Syncope, classified under Code Injection. CVSS score: 6.5/10. Published 2026-09-14.
- How severe is CVE-2026-77147?
- Medium severity. CVSS v3 base score is 6.5 out of 10.