# CVE-2026-55390 — koxudaxi datamodel-code-generator

> As of 2026-07-28, CVE-2026-55390 is a HIGH-severity vulnerability in koxudaxi datamodel-code-generator, CVSS v3.1 7.5. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-55390 as of 2026-07-28; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-28

## What is CVE-2026-55390?

datamodel-code-generator generates Python data models from schema definitions. From 0.59.0 until 0.62.0, XML Schema parsing in src/datamodel_code_generator/parser/xmlschema.py for --input-file-type xmlschema resolves xs:include, xs:import, xs:redefine, and xs:override schemaLocation values outside the input base path, allowing arbitrary local files to be read and reflected into generated models. This issue is fixed in version 0.62.0.

The record classifies CVE-2026-55390 under weakness classes [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22), [CWE-200](https://intel.threadlinqs.com/cwe/CWE-200), [CWE-610](https://cwe.mitre.org/data/definitions/610.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 69 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-28

## Is CVE-2026-55390 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [koxudaxi](https://intel.threadlinqs.com/vendors/koxudaxi): datamodel-code-generator

## How to fix CVE-2026-55390

No vendor patch reference has been recorded for CVE-2026-55390 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-55390

No threat campaign in the Threadlinqs corpus currently references CVE-2026-55390, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD. Last verified by Threadlinqs on 2026-07-30. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-442q-2j6p-642g)

**Other references**

- [github.com](https://github.com/koxudaxi/datamodel-code-generator/commit/d2d5cecd9fd3a2a6dbf148bf0740b83a11fc6820)
- [github.com (0.62)](https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-55390
Full detection coverage and IOCs for threats exploiting CVE-2026-55390 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp