# CVE-2026-55389 — koxudaxi datamodel-code-generator

> As of 2026-07-29, CVE-2026-55389 is a HIGH-severity vulnerability in koxudaxi datamodel-code-generator, CVSS v3.1 7.5, EPSS 0.3% (28.8th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-55389 as of 2026-07-29; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-29

## What is CVE-2026-55389?

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.62.0, datamodel-code-generator resolves JSON Schema $ref targets in src/datamodel_code_generator/parser/jsonschema.py through is_url and _get_ref_body without containing file:// or ../ traversal references to the input directory and without honoring --no-allow-remote-refs, allowing arbitrary local file reads. This issue is fixed in version 0.62.0.

The record classifies CVE-2026-55389 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`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 28.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-28, last modified 2026-07-29

## Is CVE-2026-55389 being exploited?

It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

## Affected products and versions

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

## How to fix CVE-2026-55389

No vendor patch reference has been recorded for CVE-2026-55389 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-2026-55389

No threat campaign in the Threadlinqs corpus currently references CVE-2026-55389, 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, FIRST EPSS. 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-8359-h9fx-j6v9)

**Other references**

- [github.com](https://github.com/koxudaxi/datamodel-code-generator/commit/2ff4a72b4550a2b2069754c5b075b1655067e5fb)
- [github.com (0.62)](https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.62.0)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-55389
Full detection coverage and IOCs for threats exploiting CVE-2026-55389 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp