restrictedpython: RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program inp...
CVE-2026-55830 is fixed in restrictedpython on 1 platform by DEBIAN-CVE-2026-55830 (version 8.4-1), released July 8, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| restrictedpython · Debian 14 | 8.4-1 | DEBIAN-CVE-2026-55830 | Jul 8, 2026 |
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