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chore(deps): Update dependency setuptools to v78 [SECURITY] #445

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chore(deps): Update dependency setuptools to v78 [SECURITY] #445

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@renovate-bot renovate-bot commented May 30, 2025 •
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This PR contains the following updates:

Package Change Age Confidence
setuptools (changelog) ==75.1.0 -> ==78.1.1 age confidence

GitHub Vulnerability Alerts

CVE-2025-47273

Summary

A path traversal vulnerability in PackageIndex was fixed in setuptools version 78.1.1

Details

    def _download_url(self, url, tmpdir):
        # Determine download filename
        #
        name, _fragment = egg_info_for_url(url)
        if name:
            while '..' in name:
                name = name.replace('..', '.').replace('\\', '_')
        else:
            name = "__downloaded__"  # default if URL has no path contents

        if name.endswith('.[egg.zip](http://egg.zip/)'):
            name = name[:-4]  # strip the extra .zip before download

 -->       filename = os.path.join(tmpdir, name)

Here: https://github.com/pypa/setuptools/blob/6ead555c5fb29bc57fe6105b1bffc163f56fd558/setuptools/package_index.py#L810C1-L825C88

os.path.join() discards the first argument tmpdir if the second begins with a slash or drive letter.
name is derived from a URL without sufficient sanitization. While there is some attempt to sanitize by replacing instances of '..' with '.', it is insufficient.

Risk Assessment

As easy_install and package_index are deprecated, the exploitation surface is reduced.
However, it seems this could be exploited in a similar fashion like GHSA-r9hx-vwmv-q579, and as described by POC 4 in GHSA-cx63-2mw6-8hw5 report: via malicious URLs present on the pages of a package index.

Impact

An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to RCE depending on the context.

References

https://huntr.com/bounties/d6362117-ad57-4e83-951f-b8141c6e7ca5
https://github.com/pypa/setuptools/issues/4946

Release Notes

pypa/setuptools (setuptools)

v78.1.1

Compare Source

v78.1.0

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v78.0.2

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v78.0.1

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v77.0.3

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v77.0.1

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v76.1.0

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v76.0.0

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v75.9.1

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v75.9.0

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v75.8.2

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v75.8.1

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v75.8.0

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v75.7.0

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v75.6.0

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v75.5.0

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v75.4.0

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v75.3.2

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v75.3.1

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v75.3.0

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v75.2.0

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Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

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@renovate-bot renovate-bot force-pushed the renovate/pypi-setuptools-vulnerability branch from b336562 to 589d81c Compare June 4, 2025 16:31
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