Gitea API Repository Fork Privilege Escalation

Executive Summary

This vulnerability exists in Gitea versions before 1.26.0. It allows API users to fork a repository into an organization without first passing the CanCreateOrgRepo permission check.

Because the permission check is bypassed, unauthorized users can create forks within an organization, potentially exposing sensitive organization secrets.

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Impact Analysis

The vulnerability can lead to unauthorized access to organization repositories by allowing users to fork repositories without proper permissions.

This unauthorized forking can expose sensitive organization secrets contained within the repositories, leading to potential data leaks.

The CVSS score of 8.1 indicates a high severity impact, with high confidentiality and integrity impacts.

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Compliance Impact

This vulnerability allows API users to fork a repository into an organization without proper authorization checks, potentially exposing organization secrets.

Exposure of sensitive organizational secrets could lead to unauthorized access to confidential data, which may result in non-compliance with data protection regulations such as GDPR and HIPAA.

Specifically, unauthorized disclosure of sensitive information can violate requirements for data confidentiality and integrity mandated by these standards.

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