CVE-2026-23795
Apache Syncope: Console XXE on Keymaster parameters
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Apache Syncope: Console XXE on Keymaster parameters
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.
- Record
CVE-2026-23795- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2026-5267
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.
- Record
EUVD-2026-5267- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-73f3-rqqf-2j54
Apache Syncope: Console XXE on Keymaster parameters
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.
- Record
GHSA-73f3-rqqf-2j54- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-23795- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
OSV
Apache Syncope: Console XXE on Keymaster parameters
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.
- Record
CVE-2026-23795- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVGHSA-73f3-rqqf-2j54
Apache Syncope: Console XXE on Keymaster parameters
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.
- Record
GHSA-73f3-rqqf-2j54- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven |
3.0.0 up to 3.0.16 | 3.0.16 |
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven |
4.0.0 up to 4.0.4 | 4.0.4 |
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven |
3.0.0 up to 3.0.16, plus listed versions 3.0.13.0.103.0.113.0.123.0.13 Show 10 moreShow less3.0.143.0.153.0.23.0.33.0.43.0.53.0.63.0.73.0.83.0.9 |
3.0.16 |
org.apache.syncope.client.idrepo:syncope-client-idrepo-consoleMaven |
4.0.0 up to 4.0.4, plus listed versions 4.0.14.0.24.0.3 |
4.0.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-23795 is a medium vulnerability (CVSS 4.9) in Apache Syncope, published February 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.97%, the 80th percentile. Fixed in org.apache.syncope.client.idrepo:syncope-client-idrepo-console 3.0.16.
References
lists.apache.org/thread/mzgbdn8hzk8vr94o660njcc7w62c2pos
openwall.com/lists/oss-security/2026/02/02/2
nvd.nist.gov/vuln/detail/CVE-2026-23795
github.com/advisories/GHSA-73f3-rqqf-2j54
repo.maven.apache.org/maven2