CVE-2026-77051: Apache Syncope: SQL injection via unsanitized entityKey and opEvent in Audit Events search

[Francesco Chicchiriccò <ilgrosso () apache org>]

Severity: moderate 

Affected versions:

- Apache Syncope (org.apache.syncope.core:syncope-core-persistence-jpa) 3.0.0-M0 through 3.0.16
- Apache Syncope (org.apache.syncope.core:syncope-core-persistence-jpa) 4.0.0-M0 through 4.0.7
- Apache Syncope (org.apache.syncope.core:syncope-core-persistence-jpa) 4.1.0-M0 through 4.1.2

Description:

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Syncope.





An administrator with adequate entitlements can achieve execution of arbitrary SQL via stacked queries, leveraging 
unsanitized entityKey and opEvent parameters.

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.

Credit:

n0mi1k (finder)
Ho1aAs (finder)

References:

https://syncope.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-77051