A AegiFlow
HIGHCVSS 8.3EPSS 0.4%

CVE-2026-55830

CVE-2026-55830 updated by NVD

Published
2026-08-28
Modified
2026-10-27
EPSS percentile
33%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
PyPIRestrictedPython—8.3

Remediation: Upgrade to 8.3 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.