CVE-2026-42027

Arbitrary Class Instantiation via Model Manifest in Apache OpenNLP ExtensionLoader Versions Affected: before 2.5.9, before 3.0.0-M3 Description: The ExtensionLoader.instantiateExtensionClass, String method loads a class by its fully-qualified name via Class.forName and invokes its no-arg...

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-2026-42440 Apache OpenNLP: OOM DoS via Unbounded Array Allocation in AbstractModelReader

OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader Versions Affected: before 2.5.9 before 3.0.0-M3 Description: The AbstractModelReader methods getOutcomes, getOutcomePatterns, and getPredicates each read a 32-bit signed integer count field from a binary...

EUVD-2026-27031

OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader Versions Affected: before 2.5.9 before 3.0.0-M3 Description: The AbstractModelReader methods getOutcomes, getOutcomePatterns, and getPredicates each read a 32-bit signed integer count field from a binary...

CVE-2026-42440

OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader Versions Affected: before 2.5.9 before 3.0.0-M3 Description: The AbstractModelReader methods getOutcomes, getOutcomePatterns, and getPredicates each read a 32-bit signed integer count field from a binary...

CVE-2026-42440 Apache OpenNLP: OOM DoS via Unbounded Array Allocation in AbstractModelReader

OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader Versions Affected: before 2.5.9 before 3.0.0-M3 Description: The AbstractModelReader methods getOutcomes, getOutcomePatterns, and getPredicates each read a 32-bit signed integer count field from a binary...

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...

Apache OpenNLP 代码问题漏洞

Apache OpenNLP is a natural language processing toolkit developed by the Apache Foundation. Versions of Apache OpenNLP prior to 2.5.9 and 3.0.0-M3 contained code vulnerabilities. These vulnerabilities stemmed from the lack of enabling FEATURESECUREPROCESSING or disabling DTD processing during the...

Apache OpenNLP 安全漏洞

Apache OpenNLP is a natural language processing toolkit developed by the Apache Foundation. Versions of Apache OpenNLP prior to 2.5.9 and 3.0.0-M3 contained security vulnerabilities. These vulnerabilities stemmed from the ExtensionLoader.instantiateExtension method, which loaded and initialized...

Apache OpenNLP 安全漏洞

Apache OpenNLP is a natural language processing toolkit developed by the Apache Foundation. There is a security vulnerability in Apache OpenNLP, which stems from AbstractModelReader not verifying whether the counts in array assignments are non-negative or within a reasonable range. This could lea...

PT-2026-36637

Name of the Vulnerable Software and Affected Versions Apache OpenNLP versions prior to 2.5.9 Apache OpenNLP versions prior to 3.0.0-M3 Description An OutOfMemory OOM Denial of Service exists in the AbstractModelReader class. The methods getOutcomes, getOutcomePatterns, and getPredicates read a...

PT-2026-36636

Name of the Vulnerable Software and Affected Versions Apache OpenNLP versions prior to 2.5.9 Apache OpenNLP versions prior to 3.0.0-M3 Description The ExtensionLoader.instantiateExtensionClass, String function loads a class by its fully-qualified name using Class.forName and invokes its no-arg...

PT-2026-36635

Name of the Vulnerable Software and Affected Versions Apache OpenNLP versions prior to 2.5.9 Apache OpenNLP versions prior to 3.0.0-M3 Description The DictionaryEntryPersistor class initializes a static SAXParserFactory without enabling FEATURE SECURE PROCESSING or disabling DTD processing. When...

EUVD-2022-4039

Malicious code in bioql PyPI...

Improper Restriction of XML External Entity Reference in Apache OpenNLP

When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache...

GHSA-H22X-HM8G-RXPG Improper Restriction of XML External Entity Reference in Apache OpenNLP

When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache...

ai.idylnlp:idylnlp-dl4j (>=1.0.0 <=1.1.0), ai.idylnlp:idylnlp-models-deeplearning (>=1.0.0 <=1.1.0) +733 more potentially affected by CVE-2021-23792 via com.twelvemonkeys.imageio:imageio-metadata (>=3.0 <=3.7.0)

com.twelvemonkeys.imageio:imageio-metadata MAVEN version =3.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =0.0.2, =0.0.2, =0.0.2, =0.0.2, =0.0.2, =0.0.2, =0.3.0 - ai.konduit.serving:konduit-serving-gpu-nano =0.1.0 and more Source cves: CVE-2021-23792 Source advisory: SNYK:JAVA-COMTWELVEMONKEYSIMAGEIO-231676...

Security Bulletin: IBM Cognos Analytics with Watson 11.2.1 has addressed multiple vulnerabilities

Summary Security vulnerabilities have been addressed in IBM Cognos Analytics with Watson 11.2.1 Vulnerability Details CVEID: CVE-2017-12620 DESCRIPTION: Apache OpenNLP could allow a remote attacker to obtain sensitive information, caused by an XXE attack when loading models or dictionaries that...

Apache OpenNLP XXE Vulnerability

Apache OpenNLP is the United States Apache Apache Software Foundation developed a toolkit based on machine learning for processing natural language text. A security vulnerability exists in Apache OpenNLP. An attacker could exploit this vulnerability to conduct XML external entity injection attack...

Apache OpenNLP XXE Vulnerability

Exploit for multiple platform in category remote exploits CVE-2017-12620 - Apache OpenNLP XXE vulnerability Severity: Medium Vendor: The Apache Software Foundation Versions Affected: OpenNLP 1.5.0 to 1.5.3 OpenNLP 1.6.0 OpenNLP 1.7.0 to 1.7.2 OpenNLP 1.8.0 to 1.8.1 Description: When loading model...