CVE-2026-113724

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Source
https://cve.org/CVERecord?id=CVE-2026-113724
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113724.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-113724
Aliases
Published
2026-10-20T19:53:29Z
Modified
2026-10-21T10:46:22Z
Severity
  • 4.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
virtualenv: Deletion recovery can change a symlink target's mode
Details

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the safe_delete() deletion error handler responds to a failed removal by reading mode bits with os.lstat(path) and applying owner-write permission with os.chmod(path, ...), which follows a symlink. A planted link inside a read-only directory can therefore cause a victim-owned target outside the destination that is initially not writable by the invoking user to become broadly writable before the retry fails, provided that user owns the target and can change its mode. Another account can use the widened mode only if it can traverse the target's parent directories; root does not reach the demonstrated failure path, and the operation does not itself read the target. This issue is fixed in version 21.14.9.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-59"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113724.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
2bfdc0230d1b2685fedfcfe66c835b9a2ec7c440
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "21.14.9"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "2bfdc0230d1b2685fedfcfe66c835b9a2ec7c440"
                }
            ],
            "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-2026-113724.json"