Known Vulnerabilities for Opennlp by Apache

Listed below are 4 of the newest known vulnerabilities associated with "Opennlp" by "Apache".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-42440 json OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader  Versions Affected:  before 2.... Not Provided 2026-05-04 2026-05-05
CVE-2026-42027 json Arbitrary Class Instantiation via Model Manifest in Apache OpenNLP ExtensionLoader Versions Affected: before 2.5.9, befo... Not Provided 2026-05-04 2026-05-05
CVE-2026-40682 json XML External Entity (XXE) via Unsanitized Dictionary Parsing in Apache OpenNLP DictionaryEntryPersistor Versions Affected: ... Not Provided 2026-05-04 2026-05-05
CVE-2017-12620 json When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a libra... 9.8 - CRITICAL 2017-10-03 2017-11-02

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationApacheOpennlp1.8.1
ApplicationApacheOpennlp1.8.0
ApplicationApacheOpennlp1.7.2
ApplicationApacheOpennlp1.7.1
ApplicationApacheOpennlp1.7.0
ApplicationApacheOpennlp1.6.0
ApplicationApacheOpennlp1.5.3
ApplicationApacheOpennlp1.5.2
ApplicationApacheOpennlp1.5.1
ApplicationApacheOpennlp1.5.0
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report