Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-59676

medium Nessus Plugin ID 330023

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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.

 - A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in seunshare of selinux policycoreutils allows a user calling seunshare that is running in the unconfined SELinux domain to delete arbitrary root- owned files, This issue affects policycoreutils through 3.10. (CVE-2026-59676)

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-2026-59676

https://ubuntu.com/security/CVE-2026-59676

Plugin Details

Severity: Medium

ID: 330023

File Name: unpatched_CVE_2026_59676.nasl

Version: 1.5

Type: Local

Agent: unix

Family: Misc.

Published: 7/26/2026

Updated: 8/31/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-59676

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.8

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:U/RL:U/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.8

Threat Score: 1.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:selinux-python, p-cpe:/a:centos:centos:policycoreutils-dbus, p-cpe:/a:centos:centos:policycoreutils-devel, p-cpe:/a:centos:centos:policycoreutils-gui, p-cpe:/a:centos:centos:policycoreutils-newrole, p-cpe:/a:centos:centos:policycoreutils-python-utils, p-cpe:/a:centos:centos:policycoreutils-python, p-cpe:/a:centos:centos:policycoreutils-restorecond, p-cpe:/a:centos:centos:policycoreutils-sandbox, p-cpe:/a:centos:centos:policycoreutils, p-cpe:/a:centos:centos:python3-policycoreutils, p-cpe:/a:redhat:enterprise_linux:policycoreutils-dbus, p-cpe:/a:redhat:enterprise_linux:policycoreutils-devel, p-cpe:/a:redhat:enterprise_linux:policycoreutils-gui, p-cpe:/a:redhat:enterprise_linux:policycoreutils-newrole, p-cpe:/a:redhat:enterprise_linux:policycoreutils-python-utils, p-cpe:/a:redhat:enterprise_linux:policycoreutils-python, p-cpe:/a:redhat:enterprise_linux:policycoreutils-restorecond, p-cpe:/a:redhat:enterprise_linux:policycoreutils-sandbox, p-cpe:/a:redhat:enterprise_linux:policycoreutils, p-cpe:/a:redhat:enterprise_linux:python3-policycoreutils

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-59676