Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-23795

Severity CVSS v4.0:
Pending analysis
Type:
CWE-611 Improper Restriction of XML External Entity Reference ('XXE')
Publication date:
03/02/2026
Last modified:
03/02/2026

Description

Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console.<br /> 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.<br /> <br /> This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3.<br /> <br /> Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
4.90
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools