CVE-2026-63720Public exploitNetwork attack vector

Remote code execution via unvalidated customBasePath

Published Jul 26, 2026 · Updated Jul 26, 2026

Code injection in koxudaxi datamodel-code-generator before 0.70.0 allows remote attackers to execute Python code through a crafted schema. The JSON Schema parser accepts a newline-bearing customBasePath value and emits it verbatim into a generated from-import statement instead of validating a dotted Python identifier path. Execution occurs only when the generated module is imported, with the importing process's privileges.

CVSS severity7.5
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in koxudaxi datamodel-code-generator before 0.70.0 allows remote attackers to execute Python code through a crafted schema. The JSON Schema parser accepts a newline-bearing customBasePath value and emits it verbatim into a generated from-import statement instead of validating a dotted Python identifier path. Execution occurs only when the generated module is imported, with the importing process's privileges.

The record

CVE
CVE-2026-63720
Published
Jul 26, 2026
Updated
Jul 26, 2026
Vendor
koxudaxi
Product
datamodel-code-generator
Classifications
CWE-94, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.70.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

koxudaxi · datamodel-code-generatorversion=0 <0.70.0

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.5VulnCheckCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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