CVE-2026-23795

Apache Syncope: Console XXE on Keymaster parameters

Published Feb 3, 2026 CVSS 3.1 · 4.9 Medium EPSS 2.0% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-73f3-rqqf-2j54 Apache Syncope: Console XXE on Keymaster parameters
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Apache
Apache syncope
Vendors & Products Apache
Apache syncope
Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
Description 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.
Title Apache Syncope: Console XXE on Keymaster parameters
Weaknesses CWE-611
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Feb 3, 2026, 4:00 PM
Reserved
Jan 16, 2026, 11:15 AM
Status
Analyzed
Published
Feb 3, 2026, 4:16 PM
Modified
Jun 17, 2026, 10:22 AM