---
title: "CVE-2026-108383: dataclasses-avroschema - Code Injection"
description: "dataclasses-avroschema 0.38.0 through 0.70.5 contains a code injection vulnerability caused by improper validation of enum field defaults in FieldRepresentation.get_field_default, letting attackers inject malicious statements into generated Python modules, exploit requires crafted enum defaults."
url: https://panop.io/threat-heartbeat/CVE-2026-108383/
---

# CVE-2026-108383 dataclasses-avroschema - Code Injection

dataclasses-avroschema 0.38.0 through 0.70.5 contains a code injection vulnerability caused by improper validation of enum field defaults in FieldRepresentation.get\_field\_default, letting attackers inject malicious statements into generated Python modules, exploit requires crafted enum defaults.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.29% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-108383)

## Details

Type

Code Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

13 October 2026

Updated

15 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Upgrade to version 0.70.6 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-108383](https://nvd.nist.gov/vuln/detail/CVE-2026-108383)
- [https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc](https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc)
- [https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6](https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6)
- [https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-4xxf-mv22-hcr8](https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-4xxf-mv22-hcr8)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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