CVE-2026-105801
openapi-python-client: Malicious OpenAPI Documents can cause Arbitrary Code Generation
- State
- Published
- Severity
- 8.4 High
- Published
- Oct 6, 2026
- Updated
- Oct 9, 2026
- Reserved
- Oct 5, 2026
Description
openapi-python-client generates Python clients from OpenAPI documents. Prior to 0.29.1, the generator does not safely neutralize malicious OpenAPI document content before rendering string, docstring, and f-string contexts in generated Python. The generated Python client can contain attacker-controlled Python that executes when a user imports the client, affecting the importing environment's integrity and potentially its confidentiality and availability. This issue is fixed in version 0.29.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.4 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
openapi-python-clientopenapi-generators |
|
References
- https://github.com/openapi-generators/openapi-python-client/security/advisories/GHSA-5293-mq8x-g3xj
- https://github.com/openapi-generators/openapi-python-client/pull/1483
- https://github.com/openapi-generators/openapi-python-client/commit/1c99af478892e5bbe6583b92acba431c9dec9186
- https://github.com/openapi-generators/openapi-python-client/releases/tag/v0.29.1
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