CVE-2026-108376 | BDVDB-2026-388455 Detail
marcosschrohdataclasses-avroschema
Description#
dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas. From version 0.47.3 through 0.70.5, FieldRepresentation.get_field_default inserts a schema-controlled referenced record name into the callable position of a generated default_factory lambda without validating it as an Avro name. A crafted record name can become an arbitrary Python expression that executes when an instance of the generated model consumes the field default. Version 0.70.6 fixes the vulnerability by rejecting record names that do not match the Avro name grammar.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References#
- https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-jcjg-gjg5-xp7v
- https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc
- https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-110113-publiccms-trade-address-save-cross-user-overwrite
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.