🚨 [security] [ruby] Update rack 3.1.11 → 3.1.12 (patch)

[depfu]

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

↗️ rack (indirect, 3.1.11 → 3.1.12) · Repo · Changelog

Security Advisories 🚨

🚨 Local File Inclusion in Rack::Static

Summary

Rack::Static can serve files under the specified root: even if urls: are provided, which may expose other files under the specified root: unexpectedly.

Details

The vulnerability occurs because Rack::Static does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory.

Impact

By exploiting this vulnerability, an attacker can gain access to all files under the specified root: directory, provided they are able to determine then path of the file.

Mitigation

• Update to the latest version of Rack, or
• Remove usage of Rack::Static, or
• Ensure that root: points at a directory path which only contains files which should be accessed publicly.

It is likely that a CDN or similar static file server would also mitigate the issue.

Commits

See the full diff on Github. The new version differs by 3 commits:

• Bump patch version.
• Update changelog.
• Use a fully resolved file path when confirming if a file can be served by `Rack::Static`.

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This PR has been merged into main. The functionality will be available in the next release.

Please check the release guide for more information.