CVE-2026-63720: Koxudaxi Datamodel-Code-Generator

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

datamodel-code-generator prior to version 0.70.0 contains a code injection vulnerability that allows attackers who control input schemas to achieve remote code execution by supplying a malicious customBasePath value containing embedded newlines and a dot-free Python expression. The crafted value is emitted verbatim into a generated 'from ... import ...' statement without identifier validation, causing arbitrary Python code to execute when the generated module is imported.

Affected products

• Koxudaxi Datamodel-Code-Generator: before 0.70.0 (fixed in 0.70.0)

Published 2026-07-26. Last modified 2026-08-12.