CVE-2018-17186 Improper Restriction of XML External Entity Reference in org.apache.syncope:syncope-core
Administrators with workflow entitlements can exploit XML External Entity vulnerabilities to read/write files and execute code.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-17186?
CVE-2018-17186 is a high-severity vulnerability in Apache Syncope, published on 6 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An administrator with workflow definition entitlements can use DTD to perform malicious operations, including but not limited to file read, file write, and code execution.
Weakness: CWE-611
Which versions are affected by CVE-2018-17186?
4 open source packages ship an affected version, including org.apache.syncope:syncope-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.syncope:syncope-core Maven | All versions | 2.0.11 |
org.apache.syncope:syncope-core Maven | All versions | 2.0.11 |
org.apache.syncope:syncope-core Maven | From 2.1.0 | 2.1.2 |
org.apache.syncope:syncope-core Maven | From 2.1.0 | 2.1.2 |
Products include Apache Syncope.
How do I fix CVE-2018-17186?
Upgrade org.apache.syncope:syncope-core to a fixed version for your release line: 2.0.11 or 2.1.2.
Is CVE-2018-17186 being exploited?
There is no known exploitation of CVE-2018-17186 in the wild and no public exploit code.
Other vulnerabilities in Apache Syncope
- CVE-2026-53405 Apache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask
- CVE-2026-53421 Apache Syncope: Remote Code Execution via Scripted Connector
- CVE-2026-57308 Apache Syncope: SQL injection vulnerability in Audit Events search
- CVE-2026-62183 Apache Syncope: User self-service privilege escalation
- CVE-2026-63071 Apache Syncope: RCE via Groovy Sandbox bypass
Sources
Also known as GHSA-qfjv-998w-q48f.