CVE-2026-23795

Apache Syncope: Console XXE on Keymaster parameters

CVSS 4.9 MEDIUMEPSS 0.8%CWE-611

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.9EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

03 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected products

Apache Software Foundation · Apache Syncope

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References

https://lists.apache.org/thread/mzgbdn8hzk8vr94o660njcc7w62c2pos http://www.openwall.com/lists/oss-security/2026/02/02/2