CVE-2026-13346

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-13346
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13346.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-13346
Downstream
Related
Published
2026-07-29T18:33:50.820Z
Modified
2026-08-12T10:57:06.938017784Z
Severity
  • 5.6 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
pip absolute path traversal during download from malicious package indexes
Details

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.

This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running pip download with the --only-binary option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.

Database specific 
{
    "cwe_ids": [
        "CWE-36"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13346.json",
    "cna_assigner": "PSF"
}
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
4b6ae5c4d7d63a61a99fbecbead8dbc35cc8b357
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "26.2"
        }
    ]
}

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/cve-osv-conversion/osv-output/CVE-2026-13346.json"