High severity · published Oct 13, 2026
CVE-2026-108385
dataclasses-avroschema enum symbols can inject statements through generated member names
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, BaseGenerator.parse_enum and EnumRepresentation.render_symbols use each schema-controlled enum symbol as a generated enum member name after case conversion but without validating it as an identifier. When generator classes are used directly, newlines and punctuation can inject constrained statements into the generated enum class body, allowing namespace modification or preventing the module from loading. Version 0.70.6 fixes the vulnerability by validating every enum symbol as a name.
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-2026-108385
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-108385
x_refsource_CONFIRM
https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-gw6w-pvv9-2fqc
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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