CVE Watch8 jul 2026

CVE-2026-12252

In nltk/nltk versions 3.9.3 and earlier, five Stanford interface classes (StanfordPOSTagger, StanfordNERTagger, StanfordParser, StanfordDepe

CVSS

7.8

Alto

EPSS

0.2%

KEV

—

Exploit Today

0-100

Publicado: 4 jul 2026 · Última mod.: 8 jul 2026 · CWE-94

EPSS · 30d

0.1%EPSS · 30 días0.2%

2026-07-042026-07-17

Descripción técnica

In nltk/nltk versions 3.9.3 and earlier, five Stanford interface classes (StanfordPOSTagger, StanfordNERTagger, StanfordParser, StanfordDependencyParser, and StanfordNeuralDependencyParser) are vulnerable to untrusted JAR code execution. These classes accept user-controllable JAR paths and execute them via the `java()` function, which invokes `subprocess.Popen()` without integrity verification. This vulnerability is identical to CVE-2026-0848, which was fixed for StanfordSegmenter by adding SHA256 verification. However, the fix was not applied to these additional classes, leaving them susceptible to arbitrary code execution when loading untrusted JAR files.

Referencias oficiales

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