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CVE-2026-108382— dataclasses-avroschema allows code injection through generated enum-symbol string literals

Quick assessment

Affected
marcosschroh dataclasses-avroschema
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

dataclasses-avroschema 库能够从 Python dataclass、Pydantic 模型以及 Faust Records 生成 Avro 模式（schema），并能够从 Avro 模式生成 Python 代码。在 0.38.0 到 0.70.5 版本中， 方法在生成的枚举赋值语句中，会将每个由 schema 控制的枚举符号用双引号括起来并进行拼接。当直接调用生成器类时，恶意构造的引号可以终止当前的字符串字面量，从而将任意 Python 代码注入到枚举类的类体中，这些代码会在导入生成的模块时执

CVSS 8.8 · High EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1195.002 · Compromise Software Supply Chain

Affected Version Matrix 1

VendorProduct Version RangeStatus
marcosschroh dataclasses-avroschema >= 0.38.0, < 0.70.6 affected
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I. Basic Information for CVE-2026-108382

Vulnerability Information
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Vulnerability Title
dataclasses-avroschema allows code injection through generated enum-symbol string literals
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
marcosschroh dataclasses-avroschema >= 0.38.0, < 0.70.6 -

II. Public POCs for CVE-2026-108382

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III. Intelligence Information for CVE-2026-108382

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Vendor Advisories for CVE-2026-108382 (1)

Vendor Pages for CVE-2026-108382 (1)

Same Patch Batch · marcosschroh · 2026-10-13 · 11 CVEs total

CVE-2026-108376 8.8 HIGH dataclasses-avroschema allows code injection through record names in generated default fac
CVE-2026-108375 8.8 HIGH dataclasses-avroschema allows code injection through generated field-default literals
CVE-2026-108377 8.8 HIGH dataclasses-avroschema allows code injection through generated Meta.schema_name
CVE-2026-108380 8.8 HIGH dataclasses-avroschema field documentation allows code injection in generated Pydantic des
CVE-2026-108378 8.8 HIGH dataclasses-avroschema record documentation can terminate generated class docstrings
CVE-2026-108381 8.8 HIGH dataclasses-avroschema pydantic-class metadata allows code injection in generated annotati
CVE-2026-108379 8.8 HIGH dataclasses-avroschema fixed namespaces allow code injection in generated annotations
CVE-2026-108383 8.8 HIGH dataclasses-avroschema enum field defaults can inject statements into generated modules
CVE-2026-108385 8.8 HIGH dataclasses-avroschema enum symbols can inject statements through generated member names
CVE-2026-108384 8.8 HIGH dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare

IV. Related Vulnerabilities

Same product: dataclasses-avroschema
Same vendor: marcosschroh
Same weakness: CWE-94

V. Comments for CVE-2026-108382

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