RCE in Koxudaxi Datamodel-Code-Generator
CVE-2026-63720
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.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.008 (52.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Koxudaxi Datamodel-code-generator — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (product, patch)
- disclosure@vulncheck.com (third-party-advisory)
- disclosure@vulncheck.com (exploit)
- disclosure@vulncheck.com (technical-description)
Frequently asked questions
- What is CVE-2026-63720?
- CVE-2026-63720 is a high-severity vulnerability in Koxudaxi Datamodel-Code-Generator, classified under Code Injection. CVSS score: 7.5/10. Published 2026-07-26.
- How severe is CVE-2026-63720?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-63720 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.