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Vulnerabilities / CVE-2023-37271

critical

CVE-2023-37271

RestrictedPython is a tool that helps to define a subset of the Python ...

Published Modified CWE 913
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GHSA8.4CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (high), Ubuntu (medium).

Description

RestrictedPython is a tool that helps to define a subset of the Python language which allows users to provide a program input into a trusted environment. RestrictedPython does not check access to stack frames and their attributes. Stack frames are accessible within at least generators and generator expressions, which are allowed inside RestrictedPython. Prior to versions 6.1 and 5.3, an attacker with access to a RestrictedPython environment can write code that gets the current stack frame in a generator and then walk the stack all the way beyond the RestrictedPython invocation boundary, thus breaking out of the restricted sandbox and potentially allowing arbitrary code execution in the Python interpreter. All RestrictedPython deployments that allow untrusted users to write Python code in the RestrictedPython environment are at risk. In terms of Zope and Plone, this would mean deployments where the administrator allows untrusted users to create and/or edit objects of type `Script (Python)`, `DTML Method`, `DTML Document` or `Zope Page Template`. This is a non-default configuration and likely to be extremely rare. The problem has been fixed in versions 6.1 and 5.3.

Affected packages and fixed versions

SourcePackageFixed in
debian 10restrictedpythonno fix listed
debian 11restrictedpythonno fix listed
debian 12restrictedpythonno fix listed
debian 13restrictedpython6.2-1
debian 14restrictedpython6.2-1
echorestrictedpython6.2-1
pip::GitHub Security Advisory piprestrictedpython5.3, 6.1, 5.3
rapidfort debian 12restrictedpython0:6.2-1
rapidfort debian 13restrictedpython0:6.2-1
ubuntu 20.04-ESMrestrictedpython4.0~b3-2ubuntu0.1~esm1
ubuntu 22.04restrictedpythonno fix listed

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.