Description
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.
Published: 2026-10-13
Score: 8.8 High
EPSS: n/a
KEV: No
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History

Tue, 13 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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.
Title dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare string
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-13T20:21:19.992Z

Reserved: 2026-10-09T21:36:27.043Z

Link: CVE-2026-108384

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T18:17:17.750

Modified: 2026-10-13T18:17:17.750

Link: CVE-2026-108384

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T20:00:16Z

Weaknesses