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Linux Distros Unpatched Vulnerability : CVE-2026-12345

medium Nessus Plugin ID 351229

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.

 - The cleanup of tempfile.TemporaryDirectory is vulnerable to a race condition. An attacker who can modify the tree during cleanup can replace a directory with a symbolic link, causing files outside of the temporary directory to be deleted or have their permissions and file flags reset, with the privileges of the process performing the cleanup. Note that platforms where shutil.rmtree.avoids_symlink_attacks is false, remain affected, and file flags may still be reset outside of the tree on all platforms.
 (CVE-2026-12345)

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://access.redhat.com/security/cve/cve-2026-12345

https://security-tracker.debian.org/tracker/CVE-2026-12345

Plugin Details

Severity: Medium

ID: 351229

File Name: unpatched_CVE_2026_12345.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 9/29/2026

Updated: 9/30/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7

Percentile: 98.06

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-12345

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.9

Threat Score: 5.3

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:platform-python-debug, p-cpe:/a:centos:centos:platform-python-devel, p-cpe:/a:centos:centos:platform-python, p-cpe:/a:centos:centos:python-debug, p-cpe:/a:centos:centos:python-devel, p-cpe:/a:centos:centos:python-distro, p-cpe:/a:centos:centos:python-docs, p-cpe:/a:centos:centos:python-docutils, p-cpe:/a:centos:centos:python-libs, p-cpe:/a:centos:centos:python-nose-docs, p-cpe:/a:centos:centos:python-nose, p-cpe:/a:centos:centos:python-pygments, p-cpe:/a:centos:centos:python-pymongo-doc, p-cpe:/a:centos:centos:python-pymongo, p-cpe:/a:centos:centos:python-pymysql, p-cpe:/a:centos:centos:python-sqlalchemy-doc, p-cpe:/a:centos:centos:python-sqlalchemy, p-cpe:/a:centos:centos:python-test, p-cpe:/a:centos:centos:python-tools, p-cpe:/a:centos:centos:python-unversioned-command, p-cpe:/a:centos:centos:python-virtualenv-doc, p-cpe:/a:centos:centos:python-virtualenv, p-cpe:/a:centos:centos:python-wheel, p-cpe:/a:centos:centos:python3-bson, p-cpe:/a:centos:centos:python3-debug, p-cpe:/a:centos:centos:python3-devel, p-cpe:/a:centos:centos:python3-distro, p-cpe:/a:centos:centos:python3-docs, p-cpe:/a:centos:centos:python3-docutils, p-cpe:/a:centos:centos:python3-idle, p-cpe:/a:centos:centos:python3-libs, p-cpe:/a:centos:centos:python3-nose, p-cpe:/a:centos:centos:python3-pygments, p-cpe:/a:centos:centos:python3-pymongo-gridfs, p-cpe:/a:centos:centos:python3-pymongo, p-cpe:/a:centos:centos:python3-pymysql, p-cpe:/a:centos:centos:python3-scipy, p-cpe:/a:centos:centos:python3-sqlalchemy, p-cpe:/a:centos:centos:python3-test, p-cpe:/a:centos:centos:python3-tkinter, p-cpe:/a:centos:centos:python3-virtualenv, p-cpe:/a:centos:centos:python3-wheel-wheel, p-cpe:/a:centos:centos:python3-wheel, p-cpe:/a:centos:centos:python3.12-debug, p-cpe:/a:centos:centos:python3.12-devel, p-cpe:/a:centos:centos:python3.12-idle, p-cpe:/a:centos:centos:python3.12-libs, p-cpe:/a:centos:centos:python3.12-rpm-macros, p-cpe:/a:centos:centos:python3.12-test, p-cpe:/a:centos:centos:python3.12-tkinter, p-cpe:/a:centos:centos:python3.12, p-cpe:/a:centos:centos:python3.14-debug, p-cpe:/a:centos:centos:python3.14-devel, p-cpe:/a:centos:centos:python3.14-freethreading-debug, p-cpe:/a:centos:centos:python3.14-freethreading-devel, p-cpe:/a:centos:centos:python3.14-freethreading-idle, p-cpe:/a:centos:centos:python3.14-freethreading-libs, p-cpe:/a:centos:centos:python3.14-freethreading-test, p-cpe:/a:centos:centos:python3.14-freethreading-tkinter, p-cpe:/a:centos:centos:python3.14-freethreading, p-cpe:/a:centos:centos:python3.14-idle, p-cpe:/a:centos:centos:python3.14-libs, p-cpe:/a:centos:centos:python3.14-test, p-cpe:/a:centos:centos:python3.14-tkinter, p-cpe:/a:centos:centos:python3.14, p-cpe:/a:centos:centos:python3.9, p-cpe:/a:centos:centos:python36-debug, p-cpe:/a:centos:centos:python36-devel, p-cpe:/a:centos:centos:python36-rpm-macros, p-cpe:/a:centos:centos:python36, p-cpe:/a:centos:centos:python3, p-cpe:/a:centos:centos:python, p-cpe:/a:centos:centos:scipy, p-cpe:/a:centos:centos:tkinter, p-cpe:/a:debian:debian_linux:pypy3, p-cpe:/a:debian:debian_linux:python3.11, p-cpe:/a:debian:debian_linux:python3.13, p-cpe:/a:debian:debian_linux:python3.14, p-cpe:/a:debian:debian_linux:python3.15, p-cpe:/a:redhat:enterprise_linux:platform-python-debug, p-cpe:/a:redhat:enterprise_linux:platform-python-devel, p-cpe:/a:redhat:enterprise_linux:platform-python, p-cpe:/a:redhat:enterprise_linux:python-debug, p-cpe:/a:redhat:enterprise_linux:python-devel, p-cpe:/a:redhat:enterprise_linux:python-distro, p-cpe:/a:redhat:enterprise_linux:python-docs, p-cpe:/a:redhat:enterprise_linux:python-docutils, p-cpe:/a:redhat:enterprise_linux:python-libs, p-cpe:/a:redhat:enterprise_linux:python-nose-docs, p-cpe:/a:redhat:enterprise_linux:python-nose, p-cpe:/a:redhat:enterprise_linux:python-pygments, p-cpe:/a:redhat:enterprise_linux:python-pymongo-doc, p-cpe:/a:redhat:enterprise_linux:python-pymongo, p-cpe:/a:redhat:enterprise_linux:python-pymysql, p-cpe:/a:redhat:enterprise_linux:python-sqlalchemy-doc, p-cpe:/a:redhat:enterprise_linux:python-sqlalchemy, p-cpe:/a:redhat:enterprise_linux:python-test, p-cpe:/a:redhat:enterprise_linux:python-tools, p-cpe:/a:redhat:enterprise_linux:python-unversioned-command, p-cpe:/a:redhat:enterprise_linux:python-virtualenv-doc, p-cpe:/a:redhat:enterprise_linux:python-virtualenv, p-cpe:/a:redhat:enterprise_linux:python-wheel, p-cpe:/a:redhat:enterprise_linux:python3-bson, p-cpe:/a:redhat:enterprise_linux:python3-debug, p-cpe:/a:redhat:enterprise_linux:python3-devel, p-cpe:/a:redhat:enterprise_linux:python3-distro, p-cpe:/a:redhat:enterprise_linux:python3-docs, p-cpe:/a:redhat:enterprise_linux:python3-docutils, p-cpe:/a:redhat:enterprise_linux:python3-idle, p-cpe:/a:redhat:enterprise_linux:python3-libs, p-cpe:/a:redhat:enterprise_linux:python3-nose, p-cpe:/a:redhat:enterprise_linux:python3-pygments, p-cpe:/a:redhat:enterprise_linux:python3-pymongo-gridfs, p-cpe:/a:redhat:enterprise_linux:python3-pymongo, p-cpe:/a:redhat:enterprise_linux:python3-pymysql, p-cpe:/a:redhat:enterprise_linux:python3-scipy, p-cpe:/a:redhat:enterprise_linux:python3-sqlalchemy, p-cpe:/a:redhat:enterprise_linux:python3-test, p-cpe:/a:redhat:enterprise_linux:python3-tkinter, p-cpe:/a:redhat:enterprise_linux:python3-virtualenv, p-cpe:/a:redhat:enterprise_linux:python3-wheel-wheel, p-cpe:/a:redhat:enterprise_linux:python3-wheel, p-cpe:/a:redhat:enterprise_linux:python3.12-debug, p-cpe:/a:redhat:enterprise_linux:python3.12-devel, p-cpe:/a:redhat:enterprise_linux:python3.12-idle, p-cpe:/a:redhat:enterprise_linux:python3.12-libs, p-cpe:/a:redhat:enterprise_linux:python3.12-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python3.12-test, p-cpe:/a:redhat:enterprise_linux:python3.12-tkinter, p-cpe:/a:redhat:enterprise_linux:python3.12, p-cpe:/a:redhat:enterprise_linux:python3.14-debug, p-cpe:/a:redhat:enterprise_linux:python3.14-devel, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-debug, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-devel, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-idle, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-libs, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-test, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-tkinter, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading, p-cpe:/a:redhat:enterprise_linux:python3.14-idle, p-cpe:/a:redhat:enterprise_linux:python3.14-libs, p-cpe:/a:redhat:enterprise_linux:python3.14-test, p-cpe:/a:redhat:enterprise_linux:python3.14-tkinter, p-cpe:/a:redhat:enterprise_linux:python3.14, p-cpe:/a:redhat:enterprise_linux:python3.9, p-cpe:/a:redhat:enterprise_linux:python36-debug, p-cpe:/a:redhat:enterprise_linux:python36-devel, p-cpe:/a:redhat:enterprise_linux:python36-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python36, p-cpe:/a:redhat:enterprise_linux:python3, p-cpe:/a:redhat:enterprise_linux:python, p-cpe:/a:redhat:enterprise_linux:scipy, p-cpe:/a:redhat:enterprise_linux:tkinter

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

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-12345