chore(deps): update dependency setuptools to v78.1.1 [security]

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
setuptools (changelog)	==78.1.0 → ==78.1.1

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setuptools has a path traversal vulnerability in PackageIndex.download that leads to Arbitrary File Write

CVE-2025-47273 / GHSA-5rjg-fvgr-3xxf

More information

Details

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

Severity

• CVSS Score: 7.7 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

References

• https://github.com/pypa/setuptools/security/advisories/GHSA-5rjg-fvgr-3xxf
• https://nvd.nist.gov/vuln/detail/CVE-2025-47273
• https://github.com/pypa/setuptools/issues/4946
• https://github.com/pypa/setuptools/commit/250a6d17978f9f6ac3ac887091f2d32886fbbb0b
• https://github.com/pypa/setuptools/blob/6ead555c5fb29bc57fe6105b1bffc163f56fd558/setuptools/package_index.py#L810C1-L825C88
• https://lists.debian.org/debian-lts-announce/2025/05/msg00035.html
• https://github.com/pypa/advisory-database/tree/main/vulns/setuptools/PYSEC-2025-49.yaml
• https://github.com/advisories/GHSA-5rjg-fvgr-3xxf

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

pypa/setuptools (setuptools)

v78.1.1

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[gemini-code-assist]

Code Review

This pull request updates the setuptools dependency in packages/google-crc32c/scripts/requirements.txt from version 78.1.0 to 78.1.1, including updated SHA-256 hashes. I have no further feedback to provide.