CVE-2025-8869

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Source
https://cve.org/CVERecord?id=CVE-2025-8869
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-8869.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-8869
Aliases
Downstream
Related
Published
2025-09-24T14:56:56.027Z
Modified
2026-05-14T03:35:55.718142609Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Fallback tar extraction in pip doesn't check symbolic links point to extraction directory
Details

When extracting a tar archive pip may not check symbolic links point into the extraction directory if the tarfile module doesn't implement PEP 706. Note that upgrading pip to a "fixed" version for this vulnerability doesn't fix all known vulnerabilities that are remediated by using a Python version that implements PEP 706.

Note that this is a vulnerability in pip's fallback implementation of tar extraction for Python versions that don't implement PEP 706 and therefore are not secure to all vulnerabilities in the Python 'tarfile' module. If you're using a Python version that implements PEP 706 then pip doesn't use the "vulnerable" fallback code.

Mitigations include upgrading to a version of pip that includes the fix, upgrading to a Python version that implements PEP 706 (Python >=3.9.17, >=3.10.12, >=3.11.4, or >=3.12), applying the linked patch, or inspecting source distributions (sdists) before installation as is already a best-practice.

Database specific 
{
    "cna_assigner": "PSF",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8869.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
a52069365063ea813fe3a3f8bac90397c9426d35
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "25.3"
        }
    ],
    "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
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-2025-8869.json"