{"cve":"CVE-2026-55403","nvd":{"published":"2026-07-28T22:17:48.840","modified":"2026-10-23T23:10:00.157","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7},"cwes":["CWE-200","CWE-601"],"references":["https://github.com/koxudaxi/datamodel-code-generator/commit/a585c037c8307b7aae815de193b7fe1c4c44994b","https://github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0","https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2","https://github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2026-55403","score":0.00336,"percentile":0.2675,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-r5vv-ff45-prp2","url":"https://osv.dev/vulnerability/GHSA-r5vv-ff45-prp2","summary":"datamodel-code-generator: Authorization / request headers leaked to cross-origin redirect target when fetching remote schemas","modified":"2026-09-10T03:51:11.866134790Z","packages":[{"ecosystem":"PyPI","name":"datamodel-code-generator","purl":"pkg:pypi/datamodel-code-generator","ranges":["<0.63.0"],"fixed":["0.63.0"]}]},{"id":"PYSEC-2026-3563","url":"https://osv.dev/vulnerability/PYSEC-2026-3563","summary":"datamodel-code-generator: Authorization / request headers leaked to cross-origin redirect target when fetching remote schemas","modified":"2026-08-04T14:30:26.224128453Z","packages":[{"ecosystem":"PyPI","name":"datamodel-code-generator","purl":"pkg:pypi/datamodel-code-generator","ranges":["<0.63.0"],"fixed":["0.63.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}