{"id":"CVE-2026-105801","state":"PUBLISHED","title":"openapi-python-client: Malicious OpenAPI Documents can cause Arbitrary Code Generation","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.","publishedAt":"2026-10-06T14:53:42.461Z","updatedAt":"2026-10-09T01:06:15.915Z","severity":{"score":8.4,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["openapi-generators openapi-python-client"],"affected":[{"vendor":"openapi-generators","product":"openapi-python-client","versions":[{"version":"< 0.29.1","status":"affected"}]}],"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"],"weaknesses":["CWE-94","CWE-116","CWE-150"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105801.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105801","state":"PUBLISHED","datePublished":"2026-10-06T14:53:42.461Z","dateUpdated":"2026-10-09T01:06:15.915Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T20:37:19.364Z"},"containers":{"cna":{"title":"openapi-python-client: Malicious OpenAPI Documents can cause Arbitrary Code Generation","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"openapi-generators","product":"openapi-python-client","versions":[{"version":"< 0.29.1","status":"affected"}]}],"references":[{"url":"https://github.com/openapi-generators/openapi-python-client/security/advisories/GHSA-5293-mq8x-g3xj","name":"https://github.com/openapi-generators/openapi-python-client/security/advisories/GHSA-5293-mq8x-g3xj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/openapi-generators/openapi-python-client/pull/1483","name":"https://github.com/openapi-generators/openapi-python-client/pull/1483","tags":["x_refsource_MISC"]},{"url":"https://github.com/openapi-generators/openapi-python-client/commit/1c99af478892e5bbe6583b92acba431c9dec9186","name":"https://github.com/openapi-generators/openapi-python-client/commit/1c99af478892e5bbe6583b92acba431c9dec9186","tags":["x_refsource_MISC"]},{"url":"https://github.com/openapi-generators/openapi-python-client/releases/tag/v0.29.1","name":"https://github.com/openapi-generators/openapi-python-client/releases/tag/v0.29.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":8.4,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-150","lang":"en","description":"CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-06T14:53:42.461Z"},"source":{"advisory":"GHSA-5293-mq8x-g3xj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-09T01:06:05.721882Z","id":"CVE-2026-105801","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-09T01:06:15.915Z"}}]}}}