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

Published Sep 14, 2026

Updated

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.

Affected Software

2 affected components

Apache Apache Syncope>3.0.0-M0<=3.0.16, >4.0.0-M0<=4.0.7, >4.1.0-M0<=4.1.2

Apache Apache Syncope>=undefined, >=undefined

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Apache Syncope to a version that resolves this vulnerability.
Fixed in 4.0.8 / 4.1.3

Event History

Sep 14, 2026

CVE Published

via MITRE·12:52 PM

Data Sourced

via MITRE·12:52 PM

DescriptionWeakness

Frequently Asked Questions

Who can exploit this issue?

An administrator with adequate entitlements is required. The vulnerable inputs are the entityKey and opEvent parameters in Audit Events search.

Which Apache Syncope versions are affected?

Affected releases are 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2.

What can a successful attacker do?

A suitably entitled administrator can execute arbitrary SQL by using stacked queries through unsanitized entityKey and opEvent values.

What versions fix the issue?

Upgrade to Apache Syncope 4.0.8 or 4.1.3.