Source: pypy3
X-Debbugs-CC: [email protected]
Severity: important
Tags: security

Hi,

The following vulnerability was published for pypy3.

CVE-2026-4360[0]:
| In the Tarfile.extract() function, the filter parameter is not
| passed properly when extracting hardlinks. An affected system that
| extracts content from untrusted tar files could end up writing files
| with an unexpected uid/gid despite the user passing filter='data' to
| the extract() function.

https://mail.python.org/archives/list/[email protected]/thread/TWZW2PC2AZOV6FENIHFSRC63OM7MBGSB/
https://github.com/python/cpython/issues/151987
https://github.com/python/cpython/pull/151988
https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301
 (3.15 branch)


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-4360
    https://www.cve.org/CVERecord?id=CVE-2026-4360

Please adjust the affected versions in the BTS as needed.

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