CVE-2026-40682

CVE-2026-40682 (Apache OpenNLP) XXE in DictionaryEntryPersistor via unsanitized dictionary parsing. The DictionaryEntryPersistor initializes a static SAXParserFactory at class-load time without enabling secure features, leaving DOCTYPE processing and external entity resolution enabled. When Dicti...

CVE-2026-42440

CVE-2026-42440 affects Apache OpenNLP, specifically AbstractModelReader. The vulnerability arises when getOutcomes(), getOutcomePatterns(), and getPredicates() read a 32-bit signed count from a binary model stream and allocate arrays (String[numOutcomes], int[numOCTypes][], String[NUM_PREDS]) wit...

CVE-2026-42027

The CVE-2026-42027 issue affects Apache OpenNLP ExtensionLoader: ExtensionLoader.instantiateExtension(Class, String) uses Class.forName() to load a class name from a model archive manifest and invokes its no-arg constructor. Although the isAssignableFrom check filters types after loading, Class.f...

CVE-2026-63317

CVE-2026-63317 — Apache OpenNLP : Three code paths load a class by its fully-qualified name via Class.forName() and invoke a no-arg constructor without validation. Affected: OpenNLP versions before 2.5.10 and before 3.0.0-M5. Path 1 (GeneratorFactory) reads the class attribute from XML feature de...