CVE-2026-113720

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Source
https://cve.org/CVERecord?id=CVE-2026-113720
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113720.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-113720
Aliases
  • GHSA-fc2g-4w5p-6whm
Downstream
Published
2026-10-20T19:43:32Z
Modified
2026-10-22T02:30:17Z
Severity
  • 4.4 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
virtualenv: Seeded files retain permissions from an older cache
Details

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the app-data copy seeder uses shutil.copy() to copy cached package files into later environments, causing cached source modes to override the current run's umask. A cache populated under a permissive umask can therefore produce files writable by another local account in a later traversable environment, allowing package code such as pip/init.py to be modified and executed by the environment owner. The attacker cannot force the earlier umask, and a private destination parent prevents access. This issue is fixed in version 21.14.9.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-732"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113720.json"
}
References

Affected packages

Git / github.com/pypa/virtualenv

Affected ranges

Type
GIT
Repo
https://github.com/pypa/virtualenv
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e53e30b9c8fbc3f4f502223819449ddc970fbbe8
Fixed
35f0b33562790176dd186d0a3c517af3acc7a0e1
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "21.14.9"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "35f0b33562790176dd186d0a3c517af3acc7a0e1"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "21.14.9",
            "range":  [
                {
                    "fixed":  "e53e30b9c8fbc3f4f502223819449ddc970fbbe8"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

20.*
20.0.0b1
20.0.0b2
20.0.32
20.0.7
20.24.3
20.27.2
20.27.3
20.3.0
20.37.0
20.38.0
20.39.0
20.39.1
21.*
21.0.0
21.1.0
21.10.0
21.11.0
21.11.1
21.12.0
21.12.1
21.13.0
21.14.0
21.14.1
21.14.2
21.14.3
21.14.4
21.14.5
21.14.6
21.14.7
21.14.8
21.2.0
21.2.1
21.2.2
21.2.3
21.2.4
21.3.0
21.3.1
21.3.2
21.3.3
21.4.0
21.4.1
21.4.2
21.4.3
21.5.0
21.5.1
21.5.2
21.6.0
21.6.1
21.7.0
21.7.1
21.7.10
21.7.11
21.7.12
21.7.13
21.7.14
21.7.15
21.7.16
21.7.2
21.7.3
21.7.4
21.7.5
21.7.6
21.7.7
21.7.8
21.7.9
21.8.0
21.8.1
21.9.0
21.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113720.json"