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TI-2026-39511 Aliases CVE-2026-54690GHSA-954p-556p-r752

datamodel-code-generator vulnerable to SSRF via JSON-Schema `$ref` to HTTP URL (silent by default)

Priority HIGH 69CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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. From 0.9.1 until 0.61.0, datamodel-code-generator silently dereferences attacker-controlled JSON Schema $ref HTTP or HTTPS URLs in src/datamodel_code_generator/parser/jsonschema.py through _get_ref_body, and the --allow-remote-refs gate can warn instead of blocking, allowing server-side request forgery through src/datamodel_code_generator/http.py. This issue is fixed in version 0.61.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00388 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed datamodel-code-generator (koxudaxi): 0.61.0datamodel-code-generator (PyPI): 0.61.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
koxudaxidatamodel-code-generator0.9.1 to before 0.61.00.61.0Patch availableCNA
—datamodel-code-generator (PyPI)0.9.1 to before 0.61.00.61.0Patch availableGHSA-954p-556p-r752
  • datamodel-code-generator Vendorkoxudaxi Affected 0.9.1 to before 0.61.0 Fixed in 0.61.0 Patch available CNA
  • datamodel-code-generator (PyPI) Vendor— Affected 0.9.1 to before 0.61.0 Fixed in 0.61.0 Patch available GHSA-954p-556p-r752

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:*0.9.1 to before 0.61.0Vulnerablekoxudaxi
  • cpe:2.3:a:koxudaxi:datamodel-code-generator:*:*:*:*:*:*:*:* Versions 0.9.1 to before 0.61.0 Vulnerable ·koxudaxi

Remediation

  • Fix · CNA datamodel-code-generator (koxudaxi) Fixed in 0.61.0
  • Fix · GHSA-954p-556p-r752 datamodel-code-generator (PyPI) Fixed in 0.61.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54690
  2. 2026-10-03 Alias added: GHSA-954p-556p-r752

References

Exploit 1

Patch 1

Other 2

  • TI-2026-39960 Information disclosure in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.5
  • TI-2026-39483 Code injection in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.8
  • TI-2026-39984 Code injection in koxudaxi datamodel-code-generator CVSS 3.1HIGH 7.5
  • TI-2026-39962 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding CVSS 3.1HIGH 7.5
  • TI-2026-39480 `datamodel-code-generator` vulnerable to code injection in via attacker-controlled `default_factory` schema field CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences