Impact

Clients generated with a maliciously crafted OpenAPI Document can generate arbitrary Python code. Subsequent execution of this malicious client is arbitrary code execution.

Giving this a CVSS of 8.0 (high) with CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C .

Patches

Fix will be included in version 0.5.3

Workarounds

Inspect OpenAPI documents before generating, or inspect generated code before executing.

For more information

If you have any questions or comments about this advisory:

• Open an issue in openapi-python-client
• Email us at danthony@triaxtec.com

References

• GHSA-9x4c-63pf-525f
• openapi-generators/openapi-python-client@f7a56aa
• https://github.com/triaxtec/openapi-python-client/blob/main/CHANGELOG.md#053---2020-08-13
• https://pypi.org/project/openapi-python-client/
• https://nvd.nist.gov/vuln/detail/CVE-2020-15142
• openapi-generators/openapi-python-client@f7a56aa
• https://github.com/openapi-generators/openapi-python-client/releases/tag/v.0.5.3