dataclasses-avroschema enum field defaults can inject statements into generated modules
CVSS score
8.8
EPSS probability
—
Risk score
0.9
Published
1 d ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%55
Short explanation
CVE-2026-108383 is a code injection vulnerability in marcosschroh dataclasses-avroschema affecting versions 0.38.0 through 0.70.5 due to unvalidated enum field defaults.
This flaw allows attackers to inject constrained statements into generated modules, leading to namespace modification or preventing the module from loading.
What should be done?
- Update to version 0.70.6 or later
- Follow the vendor advisory
Chain of evidence and sources
Sürüm 0.38.0 ile 0.70.5 arasında dataclasses-avroschema, enum alan varsayılanlarını tanımlayıcı olarak doğrulamamaktadır.
Açıklık, üretilen modüle kısıtlı ifadeler enjekte edilmesine imkan tanıyan CVE-2026-108383 olarak izlenmektedir.
Show the technical text from the sources
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, FieldRepresentation.get_field_default renders a schema-controlled enum field default as an enum member reference after applying case conversion but without validating it as an identifier. Newlines, operators, and punctuation can escape the intended reference and inject constrained statements into the generated module, allowing namespace modification or preventing the module from loading. Version 0.70.6 fixes the vulnerability by validating enum defaults as names.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-94
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-108383 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | marcosschroh | dataclasses-avroschema | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.8 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD |
| 8.8 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108383 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108383 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
CVSS Vector Radar Chart
8.8 / 10Vulnerability Scoring Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HYama durumu bilinmiyor
Weakness Type (CWE & CAPEC)
Similar Vulnerabilities
dataclasses-avroschema enum symbols can inject statements through generated member names
dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare string
dataclasses-avroschema allows code injection through generated enum-symbol string literals
dataclasses-avroschema pydantic-class metadata allows code injection in generated annotations
dataclasses-avroschema field documentation allows code injection in generated Pydantic descriptions
dataclasses-avroschema fixed namespaces allow code injection in generated annotations
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