CVE-2026-63317: opennlp before 2.5.11 (exclusive), 3.0.0 · update m1, 3.0.0 · update m2 (+1 more affected versions); +1 more affected…

Affected technology

opennlp · before 2.5.11 (exclusive)
apache

opennlp · 3.0.0 · update m1
apache

opennlp · 3.0.0 · update m2
apache

opennlp · 3.0.0 · update m3
apache

Apache OpenNLP · 3.0.0-M1 to before 3.0.0-M4, 0 to before 2.5.11
Apache Software Foundation

Description’s affected range: Versions Affected: - before 2.5.10 - before 3.0.0-M5 Description: Three code paths in Apache OpenNLP load a class by its fully-qualified name via Class.forName() and invoke its no-arg constructor without any prior validation of the class name or its type

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 5.6/10) rates confidentiality, integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.