Low severity3.7NVD Advisory· Published Jul 28, 2026· Updated Jul 30, 2026
CVE-2026-55403
CVE-2026-55403
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
datamodel-code-generatorPyPI | < 0.63.0 | 0.63.0 |
Affected products
3- Range: <0.63.0
- osv-coords2 versionspkg:rpm/opensuse/python-datamodel-code-generator&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/label-studio
< 0.72.3-1.1+ 1 more
- (no CPE)range: < 0.72.3-1.1
- (no CPE)range: < 1.23.0-r11
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-r5vv-ff45-prp2ghsaADVISORY
- github.com/koxudaxi/datamodel-code-generator/commit/a585c037c8307b7aae815de193b7fe1c4c44994bnvdWEB
- github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0nvdWEB
- github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2nvdWEB
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