CVE-2026-23795
February 03, 2026
Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console.
An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs.
This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.
Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.
Affected Packages
https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-3.0.0-M0 <syncope-3.0.16Fix Suggestion:
Update to version syncope-3.0.16https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-4.0.0-M0 <syncope-4.0.4Fix Suggestion:
Update to version syncope-4.0.4https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-3.0.0-M0 <syncope-3.0.16Fix Suggestion:
Update to version syncope-3.0.16https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-3.0.0-M0 <syncope-3.0.16Fix Suggestion:
Update to version syncope-3.0.16https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-4.0.0-M0 <syncope-4.0.4Fix Suggestion:
Update to version syncope-4.0.4https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-4.0.0-M0 <syncope-4.0.4Fix Suggestion:
Update to version syncope-4.0.4https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-4.0.0-M0 <syncope-4.0.4Fix Suggestion:
Update to version syncope-4.0.4https://github.com/apache/syncope.git (GITHUB):
Affected version(s) >=syncope-3.0.0-M0 <syncope-3.0.16Fix Suggestion:
Update to version syncope-3.0.16org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=3.0.0 <3.0.16Fix Suggestion:
Update to version 3.0.16org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=3.0.0 <3.0.16Fix Suggestion:
Update to version 3.0.16org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=3.0.0 <3.0.16Fix Suggestion:
Update to version 3.0.16org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=4.0.0 <4.0.4Fix Suggestion:
Update to version 4.0.4org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=4.0.0 <4.0.4Fix Suggestion:
Update to version 4.0.4org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=4.0.0 <4.0.4Fix Suggestion:
Update to version 4.0.4org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=4.0.0 <4.0.4Fix Suggestion:
Update to version 4.0.4org.apache.syncope.client.idrepo:syncope-client-idrepo-console (JAVA):
Affected version(s) >=3.0.0 <3.0.16Fix Suggestion:
Update to version 3.0.16Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Restriction of XML External Entity Reference
EPSS
Base Score:
0.09
