CVE-2026-108382 dataclasses-avroschema allows code injection through generated enum-symbol string literals
Attackers can inject arbitrary Python code via malicious Avro schema enum symbols, leading to code execution when the generated module is imported.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-108382?
CVE-2026-108382 is a high-severity code injection vulnerability in marcosschroh dataclasses-avroschema, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-94
Which versions are affected by CVE-2026-108382?
How do I fix CVE-2026-108382?
No fix has been published for CVE-2026-108382 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-108382 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108382 exists.
Sources
Also known as GHSA-vrq9-94ww-jv3c.