CVE-2026-108378 (GCVE-0-2026-108378)

Vulnerability from cvelistv5 – Published: 2026-10-13 17:34 – Updated: 2026-10-14 15:55
VLAI
Title
dataclasses-avroschema record documentation can terminate generated class docstrings
Summary
dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas. From version 0.40.0 through 0.70.5, ClassRepresentation.render_docstring copies a schema record's doc value into a generated triple-double-quoted class docstring without escaping quotes or backslashes. A crafted triple-quote sequence can close the docstring and inject statements into the generated class body, while a trailing backslash can escape the generated closing delimiter, allowing Python code execution during module import. Version 0.70.6 fixes the vulnerability by escaping quotes, backslashes, and unsafe control characters before rendering docstrings.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 15:55 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7675 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
marcosschroh dataclasses-avroschema Affected: >= 0.40.0, < 0.70.6
guessed Create a notification for this product.
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