Vulnerability Description
datamodel-code-generator generates Python data models from schema definitions. Prior to 0.63.0, src/datamodel_code_generator/http.py get_body reuses Authorization, Cookie, and Proxy-Authorization headers when following cross-origin redirects while fetching remote schemas, allowing credentials scoped to one schema host to be leaked to another redirect target. This issue is fixed in version 0.63.0.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/koxudaxi/datamodel-code-generator/commit/a585c037c8307b7aae81
- https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5
- https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5
FAQ
What is CVE-2026-55403?
CVE-2026-55403 is a vulnerability with a CVSS score of 3.7 (LOW). datamodel-code-generator generates Python data models from schema definitions. Prior to 0.63.0, src/datamodel_code_generator/http.py get_body reuses Authorization, Cookie, and Proxy-Authorization head...
How severe is CVE-2026-55403?
CVE-2026-55403 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55403?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.