Arbitrary file read via uncontained schema references
Published Jul 28, 2026 · Updated Jul 28, 2026
Path traversal in datamodel-code-generator before 0.62.0 allows remote attackers to read local files through a crafted JSON Schema. The JSON Schema parser routes file:// and ../ $ref targets through _get_ref_body without checking containment, while the remote-reference gate expressly skips file:// references. Exploitation requires processing an attacker-controlled schema; exposed data is limited to files readable by the generator process, including schema-shaped secrets and filesystem metadata.
Summary
What happened
Path traversal in datamodel-code-generator before 0.62.0 allows remote attackers to read local files through a crafted JSON Schema. The JSON Schema parser routes file:// and ../ $ref targets through _get_ref_body without checking containment, while the remote-reference gate expressly skips file:// references. Exploitation requires processing an attacker-controlled schema; exposed data is limited to files readable by the generator process, including schema-shaped secrets and filesystem metadata.
The record
- CVE
- CVE-2026-55389
- Published
- Jul 28, 2026
- Updated
- Jul 28, 2026
- Vendor
- koxudaxi
- Product
- datamodel-code-generator
- Classifications
- CWE-200, CWE-22, CWE-610, T1083, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 28, 2026CVE publishedPublication date reported by the CVE source.
- Jul 28, 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.
- Affected versionversion=< 0.62.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- GHSA-8359-h9fx-j6v9 manual file-read reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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