CVE-2026-108379
dataclasses-avroschema fixed namespaces allow code injection in generated annotations
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 inserts a fixed type's namespace value between quotes inside a generated types.confixed annotation without escaping or validating it. A crafted quote can terminate the namespace string and alter the surrounding annotation expression, which Python evaluates when the generated class is defined, allowing arbitrary code execution. Version 0.70.6 fixes the vulnerability by requiring the namespace to be a dot-separated sequence of valid Avro names.
| CWE | CWE-94 |
| Vendor | marcosschroh |
| Product | dataclasses-avroschema |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
Get instant alerts for marcosschroh dataclasses-avroschema
Be the first to know when new high vulnerabilities affecting marcosschroh dataclasses-avroschema are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H