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Linux Distros Unpatched Vulnerability : CVE-2026-112909

medium Nessus Plugin ID 369004

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - filelock is a platform-independent file lock for Python. Prior to 4.2.1, UnixFileLock can truncate a regular file renamed onto the lock path when another local user has actual rename permission, or hard- linked there under a permissive hard-link policy; when an explicit mode is requested, affected versions from 3.10.2 can also change that file's mode. This issue is fixed in version 4.2.1. (CVE-2026-112909)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://security-tracker.debian.org/tracker/CVE-2026-112909

Plugin Details

Severity: Medium

ID: 369004

File Name: unpatched_CVE_2026_112909.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 10/21/2026

Updated: 10/22/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.43

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 4.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:C/A:N

CVSS Score Source: CVE-2026-112909

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.6

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:debian:debian_linux:python-filelock

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/20/2026

Reference Information

CVE: CVE-2026-112909