CVE-2023-41039

RestrictedPython is a restricted execution environment for Python to run untrusted code. Python's "format" functionality allows someone controlling the format string to "read" all objects accessible through recursive attribute lookup and subscription from objects he can access. This can lead to critical information disclosure. With `RestrictedPython`, the format functionality is available via the `format` and `format_map` methods of `str` (and `unicode`) (accessed either via the class or its instances) and via `string.Formatter`. All known versions of `RestrictedPython` are vulnerable. This issue has been addressed in commit `4134aedcff1` which has been included in the 5.4 and 6.2 releases. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:zope:restrictedpython:*:*:*:*:*:*:*:*
cpe:2.3:a:zope:restrictedpython:*:*:*:*:*:*:*:*

History

17 Jun 2026, 06:20

Type Values Removed Values Added
Summary
  • (es) RestrictedPython es un entorno de ejecución restringido para que Python ejecute código no confiable. La funcionalidad 'format' de Python permite a alguien que controla la cadena de formato 'leer' todos los objetos accesibles a través de la búsqueda recursiva de atributos y la suscripción desde objetos a los que puede acceder. Esto puede llevar a una crítica revelación de información. Con 'RestrictedPython', la funcionalidad de formato está disponible a través de los métodos 'format' y 'format_map' de 'str' (y 'unicode') (accesibles ya sea a través de la clase o de sus instancias) y a través de 'string.Formatter'. Todas las versiones conocidas de 'RestrictedPython' son vulnerables. Este problema ha sido abordado en el commit '4134aedcff1', el cual ha sido incluido en las versiones 5.4 y 6.2. Se aconseja a los usuarios que actualicen. No se conocen soluciones alternativas para esta vulnerabilidad.

21 Nov 2024, 08:20

Type Values Removed Values Added
References () https://github.com/zopefoundation/RestrictedPython/commit/4134aedcff17c977da7717693ed89ce56d54c120 - Patch () https://github.com/zopefoundation/RestrictedPython/commit/4134aedcff17c977da7717693ed89ce56d54c120 - Patch
References () https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 - Vendor Advisory () https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 - Vendor Advisory
CVSS v2 : unknown
v3 : 7.7
v2 : unknown
v3 : 8.3

05 Sep 2023, 15:06

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.7
References (MISC) https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 - (MISC) https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 - Vendor Advisory
References (MISC) https://github.com/zopefoundation/RestrictedPython/commit/4134aedcff17c977da7717693ed89ce56d54c120 - (MISC) https://github.com/zopefoundation/RestrictedPython/commit/4134aedcff17c977da7717693ed89ce56d54c120 - Patch
First Time Zope restrictedpython
Zope
CPE cpe:2.3:a:zope:restrictedpython:*:*:*:*:*:*:*:*

30 Aug 2023, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-08-30 18:15

Updated : 2026-06-17 06:20


NVD link : CVE-2023-41039

Mitre link : CVE-2023-41039

CVE.ORG link : CVE-2023-41039


JSON object : View

Products Affected

zope

  • restrictedpython
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')