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VULNERABILITIES

CVE-2026-112911 Details

Description

filelock is a platform-independent file lock for Python. From 3.30.0 until 4.2.1, StrictSoftFileLock versions from 3.30.0 and SoftReadWriteLock versions from 4.0.0 can adopt a protocol directory created first by another local user in a shared parent directory, allowing that user to alter protocol state and admit concurrent holders. This issue is fixed in version 4.2.1.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.3 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/tox-dev/filelock/security/advisories/GHSA-9c4x-gm8v-wgc4 CISA-ADPExploitMitigationPatchVendor Advisory
https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03 [email protected]Patch
https://github.com/tox-dev/filelock/pull/839 [email protected]Patch
https://github.com/tox-dev/filelock/releases/tag/4.2.1 [email protected]Release Notes
https://github.com/tox-dev/filelock/security/advisories/GHSA-9c4x-gm8v-wgc4 [email protected]ExploitMitigationPatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-283Unverified Ownership[email protected]

Affected Products

ProductVersions
tox-dev filelock
>= 3.30.0, < 4.2.1

CPE

  • cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-112911
NVD Published Date:
Oct 20, 2026
NVD Last Modified:
Oct 28, 2026
Source:
[email protected]
CVE-2026-112911 Details - Not Deferred