CVE-2026-108382

dataclasses-avroschema allows code injection through generated enum-symbol string literals

State
Published
Severity
8.8 High
Published
Oct 13, 2026
Updated
Oct 13, 2026
Reserved
Oct 9, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

ProductVersions
dataclasses-avroschemamarcosschroh
  • >= 0.38.0, < 0.70.6Affected

References

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