CVE-2026-63720

datamodel-code-generator Code Injection via Unvalidated customBasePath Schema Field

HIGH
7.5
CVSS Score
Published: July 26, 2026 at 03:51 AM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendorDatamodel Code Generator

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 0.70.00
Affected range stops below 0.70.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-94

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