Vulnerability · Published Oct 13, 2026 · Assigned by GitHub_M
CVE-2026-108382dataclasses-avroschema allows code injection through generated enum-symbol string literals
High 8.8
In plain English
A high-severity code injection in dataclasses-avroschema from marcosschroh. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Official 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, EnumRepresentation.render_symbols concatenates each schema-controlled enum symbol between double quotes in a generated enum assignment. When generator classes are used directly, a quote can terminate the string literal and inject arbitrary Python code into the enum class body, which executes when the generated module is imported. Version 0.70.6 fixes the vulnerability by escaping enum symbol values before rendering them.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| marcosschroh | dataclasses-avroschema | >= 0.38.0, < 0.70.6 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-vrq9-94ww-jv3c x_refsource_CONFIRM
- https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc x_refsource_MISC
- https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6 x_refsource_MISC