CVE-2026-55830

HighCVSS 8.3/10Last modified Jul 10, 2026

Description

RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program input into a trusted environment. Prior to 8.3, check_function_argument_names() rejected protected guard hook names for regular, variadic, and keyword-only arguments but omitted positional-only arguments, allowing __getattr__, _getitem_, _write_, or _print_ to be shadowed by a local parameter and bypass the embedding application's access policy. This issue is fixed in version 8.3.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

Weakness enumeration

CWE-184

Affected software

No affected versions have been published.

Timeline

Published: Jul 8, 2026
Last modified: Jul 10, 2026
NVD status: Deferred

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