PT-2026-55683 · Nltk · Nltk/Nltk

Publicado 2026-07-04 · Atualizado 2026-07-04 · CVE-2026-12252

NVD

CVSS v3.1

7.8

Alta

Vetor base

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Correção

Code Injection

Enumeração de Fraquezas

CWE-94

Identificadores relacionados

CVE-2026-12252

Produtos afetados

Nltk/Nltk

Referências · 3

• https://huntr.com/bounties/f5c93982-0cc9-4e2e-bb85-1b6ab29a2efb · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-12252 · Nota de Segurança
• https://twitter.com/UpwindMDR/status/2073307972738875438 · Publicação no Twitter