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The vulnerability stems from insecure XML parser configuration. The commit fix shows the vulnerable code created an XMLInputFactory instance without setting SUPPORT_DTD=false. This allowed processing of external entities via DTDs, enabling XXE attacks. The patch explicitly adds 'inputFactory.setProperty(XMLInputFactory.SUPPORT_DTD, false)' to mitigate this. The test case added in TestXMLReader.java with bad.xml demonstrates the XXE scenario that would have been exploitable before this fix.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| org.apache.drill.exec:drill-java-exec | maven | >= 1.19.0, < 1.21.2 | 1.21.2 |
KEV Misses 88% of Exploited CVEs- Get the report