CVE-2021-39239: XML External Entity (XXE) vulnerability
First published: Thu Sep 16 2021(Updated: )
A vulnerability in XML processing in Apache Jena, in versions up to 4.1.0, may allow an attacker to execute XML External Entities (XXE), including exposing the contents of local files to a remote server.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Jena | <=4.1.0 |
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Reference Links
- https://lists.apache.org/thread.html/r0f03ae7e102c3e8587fdd36531fc167309335738156dfbd7d9c1bf45@%3Cdev.jena.apache.org%3E
- https://lists.apache.org/thread.html/rce5241b228a1f0e5880f6b2bfdb7ae9ee420e94cb692738a0bbfed9d@%3Cdev.jena.apache.org%3E
- https://lists.apache.org/thread.html/rf44d529c54ef1d0097e813f576a0823a727e1669a9f610d3221d493d%40%3Cusers.jena.apache.org%3E
- https://lists.apache.org/thread.html/rf44d529c54ef1d0097e813f576a0823a727e1669a9f610d3221d493d@%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/rf44d529c54ef1d0097e813f576a0823a727e1669a9f610d3221d493d%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r0f03ae7e102c3e8587fdd36531fc167309335738156dfbd7d9c1bf45%40%3Cdev.jena.apache.org%3E
- https://lists.apache.org/thread.html/rce5241b228a1f0e5880f6b2bfdb7ae9ee420e94cb692738a0bbfed9d%40%3Cdev.jena.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2021-39239?
The severity of CVE-2021-39239 is high, with a severity value of 7.5.
What is the vulnerability in Apache Jena?
The vulnerability in Apache Jena is an XML External Entities (XXE) vulnerability.
Which versions of Apache Jena are affected by CVE-2021-39239?
Versions up to 4.1.0 of Apache Jena are affected by CVE-2021-39239.
How can an attacker exploit CVE-2021-39239?
An attacker can exploit CVE-2021-39239 by executing XML External Entities (XXE) to expose the contents of local files to a remote server.
Is there a fix available for CVE-2021-39239?
Yes, upgrading to a version beyond 4.1.0 of Apache Jena will provide a fix for CVE-2021-39239.
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