CVE-2026-108380
highdataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas.
dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas. From version 0.65.9 through 0.70.5, PydanticFieldRepresentation.add_field_properties inserts a schema field's doc value between the quotes of a generated pydantic.Field description argument without escaping it. A crafted quote can terminate the string and inject an expression evaluated during generated class definition, allowing arbitrary Python code execution for Pydantic and AvroDantic model generation. Version 0.70.6 fixes the vulnerability by escaping the documentation value before rendering it.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832da... security-advisories@github.com
- https://github.com/marcosschroh/dataclasses-avroschema/pull/843 security-advisories@github.com
- https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6 security-advisories@github.com
- https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-g7p7-mgvm-... security-advisories@github.com
- https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-g7p7-mgvm-... 134c704f-9b21-4f2e-91b3-4a467353bcc0