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CVE-2026-34452

CVE-2026-34452 · Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then returned the unresolved path for subsequent file operations. A local attacker able to write to the memory directory could retarget a symlink between validation and use, causing reads or writes to escape the sandbox. The synchronous memory tool implementation was not affected. This issue has been patched in version 0.87.0.

CVSS 5.8 · Media · EPSS 0,1% · Corrección disponible

Publicación
Actualización

Pila tecnológica: python

Productos y versiones afectados

  • anthropic-sdk-python

    Versiones
    • >= 0.86.0, < 0.87.0: Afectada

    Sin corrección publicada

  • anthropic PyPI

    Versiones
    • 0.86.0
    Intervalos de versiones afectados
    • ECOSYSTEM: ≥ 0.86.0, < 0.87.0

    Actualiza a 0.87.0

Fuentes originales

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