Vulnerability · Published Feb 3, 2026 · Assigned by apache

CVE-2026-23795Apache Syncope: Console XXE on Keymaster parameters

Medium 4.9

In plain English

A medium-severity XML external entity in Apache Syncope from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.9Medium
Exploit odds (30 days)2.0%top 19.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.apache.syncope.client.idrepo:syncope-client-idrepo-console3.0.16GHSA-73f3-rqqf-2j54
Mavenorg.apache.syncope.client.idrepo:syncope-client-idrepo-console4.0.4GHSA-73f3-rqqf-2j54

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache Syncope 3.0 – through 3.0.154.0 – through 4.0.3

Weakness: CWE-611 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References