High severity · published Oct 13, 2026
CVE-2026-108382
dataclasses-avroschema allows code injection through generated enum-symbol string literals
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DA
dataclasses-avroschema · marcosschroh
>= 0.38.0, < 0.70.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-108382
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-108382
x_refsource_CONFIRM
https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-vrq9-94ww-jv3c
x_refsource_MISC
https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc
x_refsource_MISC
https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6
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