FixVibe

// código / spotlight

NLTK Zip Slip Code Execution Advisory

A vulnerable NLTK downloader can turn compromised package archives into filesystem writes and code-execution risk.

El gancho

NLTK data downloads often run during bootstrap, notebooks, CI, model preparation, or worker startup. A vulnerable downloader dependency matters when those paths can pull malicious or compromised package archives, but a repository dependency match is still version evidence rather than proof of runtime code execution.

Cómo funciona

The repo check looks for the PyPI `nltk` package in Python dependency manifests and lockfiles. Exact lockfile pins produce the strongest signal; broader manifest ranges are reported when they clearly allow versions before 3.9.3.

El radio de impacto

If an affected NLTK runtime downloads and extracts a malicious or compromised data package, archive entries may write outside the intended directory and later execute when imported. A repo match should drive dependency remediation and downloader-path review before anyone treats the issue as confirmed runtime compromise.

// qué comprueba fixvibe

Qué comprueba FixVibe

FixVibe repo scans look for high-confidence security patterns and dependency risk in source context. Reports identify the affected area and recommended fix. For check-specific questions about exact detection heuristics, active payload details, or source-code rule patterns, contact support@fixvibe.app.

Defensas a prueba de balas

Upgrade `nltk` to 3.9.3 or newer, regenerate the active Python lockfile, and rebuild every runtime, CI job, worker, notebook, or image that can call NLTK downloader code. Review `nltk.download()` and custom NLTK data mirror/cache usage so package sources stay trusted, then verify with dependency-tree and benign application tests.

// ejecútalo en tu propia app

Sigue lanzando mientras FixVibe vigila.

FixVibe somete la superficie pública de tu app a la misma presión que un atacante — sin agente, sin instalación, sin tarjeta. Seguimos investigando nuevos patrones de vulnerabilidad y los convertimos en checks prácticos y fixes listos para Cursor, Claude y Copilot.

Código fuente
116
tests en esta categoría
módulos
76
checks dedicados de código fuente
cada scan
487+
tests en todas las categorías
  • Gratis — sin tarjeta, sin instalación, sin ping de Slack
  • Solo pega una URL — nosotros crawleamos, sondeamos y reportamos
  • Hallazgos clasificados por severidad, deduplicados al puro signal
  • AI-ready prompts where code applies, plus operator steps for DNS/provider fixes
Ejecutar un escaneo gratis

// checks actuales · fixes prácticos · lanza con confianza

NLTK Zip Slip Code Execution Advisory — Spotlight de Vulnerabilidad | FixVibe · FixVibe