HIGH

CVE-2026-63720

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

CVSS v3

7.5

HIGH

EPSS Score

0.4 %

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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.

Technical details

CVSS v3 Vector: 3.1
Published: 2026-07-26
Last Modified: 2026-07-26

Frequently asked questions

What is CVE-2026-63720?

Is CVE-2026-63720 actively exploited?

Active exploitation of CVE-2026-63720 has not been confirmed. The EPSS score is 0.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-63720?

CVE-2026-63720 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.

Is CVE-2026-63720 affecting your environment?

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