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CVE-2026-34450

CVE-2026-34450 · Claude SDK for Python: Insecure Default File Permissions in Local Filesystem Memory Tool

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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 local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and world-writable in environments with a permissive umask such as many Docker base images. A local attacker on a shared host could read persisted agent state, and in containerized deployments could modify memory files to influence subsequent model behavior. Both the synchronous and asynchronous memory tool implementations were affected. This issue has been patched in version 0.87.0.

CVSS 4.8 · Moyenne · EPSS 0,1% · Correctif disponible

Publication
Mise à jour

Pile logicielle: python

Produits et versions concernés

  • anthropic-sdk-python

    Versions du logiciel
    • >= 0.86.0, < 0.87.0: Concernée

    Aucun correctif publié

  • anthropic PyPI

    Versions du logiciel
    • 0.86.0
    Plages de versions concernées
    • ECOSYSTEM: ≥ 0.86.0, < 0.87.0

    Mettez à jour vers 0.87.0

Sources originales

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