CVE-2026-108377— dataclasses-avroschema allows code injection through generated Meta.schema_name
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 可从 Python dataclass、Pydantic 模型和 Faust Records 生成 Avro 模式，并可根据 Avro 模式生成 Python 代码。在版本 0.62.3 至 0.70.5 中， 方法会将由模式控制的 Avro 记录名称直接插入到生成的 Python 源码中 字段的引号内，而未对该名称进行转义处理。攻击者可构造特殊的名称以终止字符串字面量，并向生成的类体中注入可执行语句；当导入生成的模块时，这些注入的代码将被执行。版本 0.70.6 通过
Possible ATT&CK Techniques 1 AI
T1195 · Supply Chain CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| marcosschroh | dataclasses-avroschema | >= 0.62.3, < 0.70.6 |
affected |
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I. Basic Information for CVE-2026-108377
Vulnerability Information
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Vulnerability Title
dataclasses-avroschema allows code injection through generated Meta.schema_name
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 0.62.3 through 0.70.5, ClassRepresentation.render_metaclass inserts a schema-controlled Avro record name into the quoted Meta.schema_name field of generated Python source without escaping it. A crafted name can terminate the string literal and inject statements into the generated class body, which execute when the generated module is imported. Version 0.70.6 fixes the vulnerability by escaping schema values rendered into generated string literals.
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 | >= 0.62.3, < 0.70.6 | - |
|
II. Public POCs for CVE-2026-108377
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-108377 (1)
Vendor Pages for CVE-2026-108377 (1)
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🔗 Release 0.70.6 · marcosschroh/dataclasses-avroschema · GitHub x_refsource_MISC
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-2026-108380 | 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-2026-108382 | 8.8 HIGH | dataclasses-avroschema allows code injection through generated enum-symbol string literals |
| 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 |
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