CVE-2026-82617 Apache OpenNLP, Apache OpenNLP: ReDoS / stack exhaustion in RegexNameFinderFactory built-in EMAIL and URL patterns

The two built-in name-finder patterns exposed by opennlp.tools.namefind.RegexNameFinderFactory - DEFAULTREGEXNAMEFINDER.EMAIL and DEFAULTREGEXNAMEFINDER.URL - contain ambiguous nested quantifiers. An application that obtains these finders through RegexNameFinderFactory.getDefaultRegexNameFinders...

EUVD-2026-76169

The two built-in name-finder patterns exposed by opennlp.tools.namefind.RegexNameFinderFactory - DEFAULTREGEXNAMEFINDER.EMAIL and DEFAULTREGEXNAMEFINDER.URL - contain ambiguous nested quantifiers. An application that obtains these finders through RegexNameFinderFactory.getDefaultRegexNameFinders...

CVE-2026-82617

Apache OpenNLP versions 2.0.0 through 2.5.11 and 3.0.0-M1 through 3.0.0-M5 are affected by ambiguous nested quantifiers in the built-in EMAIL and URL name-finder patterns of RegexNameFinderFactory. The EMAIL pattern suffers quadratic-time ReDoS: a ~32 KB input without an @ forces re-scanning from...