CVE-2026-108379
dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avr
CVSS
8.8
High
EPSS
0.3%
p26
KEV
—
Exploit Today
8
0-100
Published: Oct 13, 2026 · Last modified: Oct 16, 2026 · CWE-94
0.3%EPSS · 30 days0.3%
2026-10-142026-10-21
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.
- github.comhttps://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc
- github.comhttps://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6
- github.comhttps://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-h9q3-f96w-f88j
CVECVSSEPSSKEVRExploitTitleMod.
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