CVE-2026-112936

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4 resolve the lock path and pass it to SQLite without rejecting a final symbolic link, allowing another local user who can create names in the lock directory to redirect database creation and locking or split mutual exclusion between targets. This issue is fixed in version 4.0.9.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-59",
        "CWE-668"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112936.json"
}

References

Affected packages

Git / github.com/tox-dev/filelock

Affected ranges

Type

GIT

Repo

https://github.com/tox-dev/filelock

Events

Introduced

afa79d567faf98332ac5700fa670b3425a0cbc29

Fixed

7b00bb81d41039f05173fb67876db196b9d8b007

Fixed

4d45e83caf7e31f9a12fb44526bdc07f70114f04

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*",
            "range": [
                {
                    "introduced": "3.20.4"
                },
                {
                    "fixed": "4.0.9"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "4d45e83caf7e31f9a12fb44526bdc07f70114f04"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "4.0.9",
            "range": [
                {
                    "fixed": "7b00bb81d41039f05173fb67876db196b9d8b007"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112936.json"