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CVE-2026-108376

8.8 high SSVC exploitation: poc Awaiting Analysis
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. References+1 references (now 4)NVD modified 2026-10-16 23:16
  2. StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 16:00
  3. First seenCVSS 8.8NVD modified 2026-10-13 18:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4