{"id":"CVE-2020-15142","aliases":["GHSA-9x4c-63pf-525f","PYSEC-2020-71"],"title":"openapi-python-client Arbitrary Code Generation vulnerability","summary":"openapi-python-client Arbitrary Code Generation vulnerability","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","vendor":"openapi-python-client","product":"openapi-python-client","ecosystem":"pip","affected":["openapi-python-client < 0.5.3"],"patched":["openapi-python-client 0.5.3"],"published":"2020-08-20","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-9x4c-63pf-525f","references":[{"url":"https://github.com/triaxtec/openapi-python-client/security/advisories/GHSA-9x4c-63pf-525f"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15142"},{"url":"https://github.com/openapi-generators/openapi-python-client/commit/f7a56aae32cba823a77a84a1f10400799b19c19a"},{"url":"https://github.com/triaxtec/openapi-python-client/commit/f7a56aae32cba823a77a84a1f10400799b19c19a"},{"url":"https://github.com/openapi-generators/openapi-python-client"},{"url":"https://github.com/openapi-generators/openapi-python-client/releases/tag/v.0.5.3"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/openapi-python-client/PYSEC-2020-71.yaml"},{"url":"https://github.com/triaxtec/openapi-python-client/blob/main/CHANGELOG.md#053---2020-08-13"},{"url":"https://pypi.org/project/openapi-python-client"}],"tags":["osv","pip"],"epss":0.01849,"epssPercentile":0.78159,"ingestedAt":"2026-07-08T18:25:48.113Z","slug":"CVE-2020-15142","body":"## Overview\n\n### Impact\nClients generated with a maliciously crafted OpenAPI Document can generate arbitrary Python code. Subsequent execution of this malicious client is arbitrary code execution.\n\nGiving 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 .\n\n### Patches\nFix will be included in version 0.5.3\n\n### Workarounds\nInspect OpenAPI documents before generating, or inspect generated code before executing.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [openapi-python-client](https://github.com/triaxtec/openapi-python-client/issues)\n* Email us at [danthony@triaxtec.com](mailto:danthony@triaxtec.com)\n\n## Affected packages\n\n- `openapi-python-client < 0.5.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `openapi-python-client 0.5.3`","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":44,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}