{"id":"CVE-2026-108384","summary":"dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare string","details":"dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas. From version 0.38.0 through 0.70.5, BaseGenerator.parse_fixed interpolates a fixed type's aliases value directly into a generated types.confixed annotation. A list is represented with quoted entries, but a bare string is emitted as an unquoted Python expression and evaluated when the generated module is imported, allowing arbitrary code execution from a crafted schema. Version 0.70.6 fixes the vulnerability by rejecting aliases values that are not lists.","aliases":["GHSA-8j5c-xq6f-2c43"],"modified":"2026-10-14T10:30:46.405753711Z","published":"2026-10-13T17:53:48.228Z","database_specific":{"cwe_ids":["CWE-94"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108384.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108384.json"},{"type":"FIX","url":"https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc"},{"type":"WEB","url":"https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6"},{"type":"ADVISORY","url":"https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-8j5c-xq6f-2c43"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108384"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/marcosschroh/dataclasses-avroschema","events":[{"introduced":"3024363f89b8799aacd15cd0bffcaa52c6972387"},{"fixed":"de45de04f080e829c787a4b22eff92e5e632eaa1"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0.38.0"},{"fixed":"0.70.6"}]}}],"versions":["0.70.5","0.70.4","0.70.3","0.70.2","0.70.1","0.70.0","0.69.1","0.69.0","0.68.1","0.68.0","0.67.0","0.66.4","0.66.3","0.66.2","0.66.1","0.66.0","0.65.14","0.65.13","0.65.12","0.65.11","0.65.10","0.65.9","0.65.8","0.65.7","0.65.6","0.65.5","0.65.4","0.65.3","0.65.2","0.65.1","0.65.0","0.64.2","0.64.1","0.64.0","0.63.10","0.63.9","0.63.8","0.63.7","0.63.6","0.63.5","0.63.4","0.63.3","0.63.2","0.63.1","0.63.0","0.62.11","0.62.10","0.62.9","0.62.8","0.62.7","0.62.6","0.62.5","0.62.4","0.62.3","0.62.2","0.62.1","0.62.0","0.61.0","0.60.2","0.60.1","0.60.0","0.59.1","0.59.0","0.58.2","0.58.1","0.58.0","0.57.5","0.57.4","0.57.3","0.57.2","0.57.1","0.57.0","0.56.2","0.56.1","0.56.0","0.55.1","0.55.0","0.54.2","0.54.1","0.54.0","0.53.1","0.53.0","0.52.1","0.52.0","0.51.0","0.50.2","0.50.1","0.50.0","0.49.0","0.48.1","0.48.0","0.47.3","0.47.2","0.47.1","0.47.0","0.46.3","0.46.2","0.46.1","0.46.0","0.45.1","0.45.0","0.44.0","0.43.10","0.43.9","0.43.8","0.43.7","0.43.6","0.43.5","0.43.4","0.43.3","0.43.2","0.43.1","0.43.0","0.42.2","0.42.1","0.42.0","0.41.2","0.41.1","0.41.0","0.40.0","0.39.3","0.39.2","0.39.1","0.39.0","0.38.1","0.38.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108384.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}