CVE-2026-77051

EUVD-2026-77459

14.09.2026, 13:18

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.

SQL Injection

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
apache	CNA	9.8 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 48.71%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).

Vendor	Product	Version	Source
apache	syncope	𝑥 ≤ 3.0.16	CNA
apache	syncope	𝑥 ≤ 4.0.7	CNA
apache	syncope	𝑥 ≤ 4.1.2	CNA

Common Weakness Enumeration

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

References

https://lists.apache.org/thread/lv2mm7wojmxwz29jr0zy469p9zbz23f7

http://www.openwall.com/lists/oss-security/2026/09/14/14