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CVE-2026-55403

3.7 · LOW

datamodel-code-generator generates Python data models from schema definitions.

Published Jul 28, 2026CWE-200EPSS 0.34%

Overview

CVE-2026-55403 is a low-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/koxudaxi/datamodel-code-generator/commit/a585c037c8307b7aae815de193b7fe1c4c44994bGitHubgithub.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0GitHubgithub.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2GitHubgithub.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2

How CyberStrike helps

Frequently asked questions

What is CVE-2026-55403?

CVE-2026-55403 is a low-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-55403?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-55403?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-55403?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-55403 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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