PYSEC-2026-4245
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/openapi-python-client/PYSEC-2026-4245.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-4245
- Aliases
- Published
- 2026-10-15T10:22:46Z
- Modified
- 2026-10-15T14:45:12Z
- Severity
-
- 8.4 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- openapi-python-client: Malicious OpenAPI Documents can cause Arbitrary Code Generation
- Details
-
Impact
A malicious OpenAPI document processed by any
openapi-python-clientprior to 0.29.1 can generate arbitrary Python code. When anyone imports the malicious client, that arbitrary Python code will execute.Patches
Versions starting with 0.29.1 have updated with guardrails to prevent arbitrary code generation. Upgrade to this version immediately and audit any code previously generated from untrusted documents.
Workarounds
Do not generate clients for documents you don't completely trust. Carefully verify any existing generated code from untrusted documents.
- References
-
- https://github.com/openapi-generators/openapi-python-client/security/advisories/GHSA-5293-mq8x-g3xj
- https://nvd.nist.gov/vuln/detail/CVE-2026-105801
- 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
- https://github.com/openapi-generators/openapi-python-client/releases/tag/v0.29.1
- https://pypi.org/project/openapi-python-client
- https://github.com/advisories/GHSA-5293-mq8x-g3xj
Affected packages
PyPI / openapi-python-client
Package
- Name
- openapi-python-client
- View open source insights on deps.dev
- Purl
- pkg:pypi/openapi-python-client
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed0.29.1
Affected versions
0.*
0.1.0.dev0
0.1.0
0.1.1
0.1.2
0.2.0
0.2.1
0.3.0
0.4.0rc1
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5
0.6.0a1
0.6.0a2
0.6.0a3
0.6.0a4
0.6.0
0.6.1
0.6.2
0.7.0rc0
0.7.0rc1
0.7.0rc2
0.7.0rc3
0.7.0
0.7.1
0.7.2
0.7.3
0.8.0
0.9.0
0.9.1
0.9.2
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.5
0.10.6
0.10.7
0.10.8
0.11.0
0.11.1
0.11.2
0.11.3
0.11.4
0.11.5
0.11.6
0.12.1
0.12.2
0.12.3
0.13.0
0.13.1
0.13.2
0.13.3
0.13.4
0.14.0
0.14.1
0.15.0
0.15.1
0.15.2
0.16.0
0.16.1
0.17.0
0.17.1
0.17.2
0.17.3
0.18.0
0.19.0
0.19.1
0.20.0
0.21.0
0.21.1
0.21.2
0.21.3
0.21.4
0.21.5
0.21.6
0.21.7
0.22.0
0.23.0
0.23.1
0.24.0
0.24.1
0.24.2
0.24.3
0.25.0
0.25.1
0.25.2
0.25.3
0.26.0
0.26.1
0.26.2
0.27.0
0.27.1
0.28.0
0.28.1
0.28.2
0.28.3
0.28.4
0.29.0