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simpleeval

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.7PyPIAmendedPublished

    SimpleEval: Objects (including modules) can leak dangerous modules through to direct access inside the sandbox

    CVE-2026-32640 · GHSA-44vg-5wv2-h2hg

    Affected
    • PyPI simpleeval < 1.0.5
    Fixed in
    1.0.5· Vendor fix available
    Issue
    Impact If the objects passed in as names to SimpleEval have modules or other disallowed / dangerous objects available as attrs. Additionally, dangerous functions or modules could be accessed by passing them as callbacks to other safe functions to call. Examples (found by @ByamB4): Any module where non-underscore attribute chains reach os or sys: - os.path, pathlib, shutil, glob (direct .os / .sys attributes) - statistics (has .sys) - numpy (has .ctypeslib.os and .f2py.sys) - urllib.parse (has .warnings.sys) Patches The latest version 1.0.5 has this issue fixed. Workarounds Don't pass in objects or modules which have direct attributes to potentially dangerous items. Use a wrapper to wrap the potentially vulnerable items (See the ModuleWrapper in version 1.0.5)

    Recommended action: Upgrade to 1.0.5 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →