CVE-2026-6357

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Source
https://cve.org/CVERecord?id=CVE-2026-6357
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-6357.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-6357
Aliases
Downstream
Related
Published
2026-04-27T14:19:47.657Z
Modified
2026-05-18T06:00:19.237865998Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
pip self-update functionality can import newly installed modules after wheel installation
Details

pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.

Database specific 
{
    "cna_assigner": "PSF",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6357.json"
}
References

Affected packages

Git / github.com/pypa/pip

Affected ranges

Type
GIT
Repo
https://github.com/pypa/pip
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
90b2b3e0f7ef75c485155716d904e51654575803
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "26.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.3
0.6
0.7
0.7.1
0.8
0.8.2
0.8.3
1.*
1.0
1.2
1.4rc1
1.4rc2
10.*
10.0.0
10.0.1
18.*
18.0
18.1
19.*
19.0
19.0.2
19.1.1
20.*
20.0.2
21.*
21.0
21.3
26.*
26.0
6.*
6.0
9.*
9.0.0
9.0.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-6357.json"