cvedb.io
CVE-2026-40682
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-05-04T17:16:23.657 · Last modified 2026-06-30T09:16:24.480

Summary

XML External Entity (XXE) via Unsanitized Dictionary Parsing in Apache OpenNLP DictionaryEntryPersistor Versions Affected: before 2.5.9, before 3.0.0-M3 Description: The DictionaryEntryPersistor class initializes a static SAXParserFactory at class-load time without enabling FEATURE_SECURE_PROCESSING or disabling DTD processing. When create(InputStream, EntryInserter) is invoked, the only feature set on the XMLReader is namespace support — external entity resolution and DOCTYPE declarations remain fully enabled. An attacker who can supply a crafted dictionary file (e.g., a stop-word list or domain dictionary) containing a malicious DOCTYPE declaration can trigger local file disclosure via file:// entity references or server-side request forgery via http:// entity references during SAX p

Affected products

apache — opennlp

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.