Missing Authorization Affecting github-webhook-server package, versions [,4.0.0)


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-PYTHON-GITHUBWEBHOOKSERVER-14172576
  • published4 Dec 2025
  • disclosed2 Dec 2025
  • creditUnknown

Introduced: 2 Dec 2025

New CVE NOT AVAILABLE CWE-862  (opens in a new tab)

How to fix?

Upgrade github-webhook-server to version 4.0.0 or higher.

Overview

github-webhook-server is an A webhook server to manage Github repositories and pull requests.

Affected versions of this package are vulnerable to Missing Authorization via unsafe loading of OWNERS files from pull-request–controlled repository checkouts. The OwnersFileHandler.get_all_repository_approvers_and_reviewers()z method, together with _get_file_content_from_local(), reads OWNERS files directly from clone_repo_dir` without isolating the PR head from the protected base branch. As a result, approver and reviewer lists can be sourced from attacker-modified OWNERS files in the pull request, allowing unauthorized users to influence or bypass required review and approval policies.

References

CVSS Base Scores

version 4.0
version 3.1