Arbitrary Code Injection Affecting dataclasses-avroschema package, versions [,0.70.6)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-DATACLASSESAVROSCHEMA-21693577
- published24 Oct 2026
- disclosed13 Oct 2026
- creditUnknown
Introduced: 13 Oct 2026
NewCVE-2026-108378 (opens in a new tab)How to fix?
Upgrade dataclasses-avroschema to version 0.70.6 or higher.
Overview
dataclasses-avroschema is a Generate Avro Schemas from Python classes. Serialize/Deserialize python instances with avro schemas
Affected versions of this package are vulnerable to Arbitrary Code Injection via the ClassRepresentation.render_docstring process. An attacker can execute arbitrary Python code during module import by crafting a schema record's doc value to include a triple-quote sequence that closes the generated docstring and injects statements into the class body, or by using a trailing backslash to escape the closing delimiter.