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PatchSiren cyber security CVE debrief

CVE-2026-55389 koxudaxi CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-28T22:17:48.400Z and has not been modified since then. The vulnerability exists in datamodel-code-generator, which resolves JSON Schema $ref targets without containing file:// or ../ traversal references, allowing arbitrary local file reads. This issue is fixed in version 0.62.0. Users of datamodel-code-generator, especially those using versions prior to 0.62.0, should be aware of this vulnerability and take action to mitigate. This includes assessing their current version, verifying exposure, and applying the necessary updates or mitigations. Additionally, security teams and vulnerability management teams should review the impact of this vulnerability on their systems and prioritize mitigation efforts accordingly. The vulnerability allows unauthorized file access due to inadequate handling of $ref targets in JSON Schema. Limited information on exploitability and affected systems. Further review of datamodel-code-generator usage and version assessment is required. Users should verify their current version and assess exposure.

Vendor
koxudaxi
Product
datamodel-code-generator
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-28
Original CVE updated
2026-08-06
Advisory published
2026-07-28
Advisory updated
2026-08-06

Who should care

Users of datamodel-code-generator, especially those using versions prior to 0.62.0, should be aware of this vulnerability and take action to mitigate. This includes assessing their current version, verifying exposure, and applying the necessary updates or mitigations. Additionally, security teams and vulnerability management teams should review the impact of this vulnerability on their systems and prioritize mitigation efforts accordingly.

Technical summary

datamodel-code-generator resolves JSON Schema $ref targets without containing file:// or ../ traversal references, allowing arbitrary local file reads. Fixed in version 0.62.0. The vulnerability exists due to inadequate handling of $ref targets in JSON Schema, which can lead to unauthorized file access. Users of datamodel-code-generator should be aware of this issue and take necessary actions to mitigate it.

Defensive priority

High priority due to arbitrary local file reads via datamodel-code-generator's handling of JSON Schema $ref targets.

Recommended defensive actions

  • Inventory and assess datamodel-code-generator usage in your environment.
  • Apply version 0.62.0 or later to address the vulnerability.
  • Monitor for potential local file reads and anomalous activity.
  • Implement compensating controls to restrict file access.
  • Exception tracking and retest after applying mitigation.
  • Review datamodel-code-generator usage and assess exposure.
  • Verify current version and assess exposure.

Evidence notes

Evidence from NVD and CVE.org indicates datamodel-code-generator vulnerability allows arbitrary local file reads. Limited information on exploitability and affected systems. Further review of datamodel-code-generator usage and version assessment is required. Users should verify their current version and assess exposure. Datamodel-code-generator's handling of JSON Schema $ref targets without proper containment allows unauthorized file access. This issue was addressed in version 0.62.0.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-28T22:17:48.400Z and has not been modified since then.