Moderate severityOSV Advisory· Published Feb 3, 2026· Updated Feb 3, 2026
Apache Syncope: Console XXE on Keymaster parameters
CVE-2026-23795
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven | >= 3.0.0, < 3.0.16 | 3.0.16 |
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven | >= 4.0.0, < 4.0.4 | 4.0.4 |
Affected products
2- ghsa-coordsRange: >= 3.0.0, < 3.0.16
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-73f3-rqqf-2j54ghsaADVISORY
- lists.apache.org/thread/mzgbdn8hzk8vr94o660njcc7w62c2posghsavendor-advisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-23795ghsaADVISORY
- www.openwall.com/lists/oss-security/2026/02/02/2ghsaWEB
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