Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-85518

critical Nessus Plugin ID 370566

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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 flaw was found in OpenSCAP. When decomposing a Source DataStream (SDS) file, the application does not properly validate relative file path attributes, leading to a path traversal vulnerability. An attacker can exploit this flaw by tricking a user or automated system into decomposing a crafted datastream containing directory traversal sequences. Successful exploitation allows unauthorized file creation or modification outside the intended target directory with the permissions of the executing process.
 (CVE-2026-85518)

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-2026-85518

Plugin Details

Severity: Critical

ID: 370566

File Name: unpatched_CVE_2026_85518.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 10/22/2026

Updated: 10/22/2026

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: Low

Score: 3.5

Percentile: 51.45

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.4

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

CVSS Score Source: CVE-2026-85518

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.3

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, 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:openscap-containers, p-cpe:/a:centos:centos:openscap-devel, p-cpe:/a:centos:centos:openscap-engine-sce-devel, p-cpe:/a:centos:centos:openscap-engine-sce, p-cpe:/a:centos:centos:openscap-extra-probes, p-cpe:/a:centos:centos:openscap-python3, p-cpe:/a:centos:centos:openscap-python, p-cpe:/a:centos:centos:openscap-scanner, p-cpe:/a:centos:centos:openscap-selinux, p-cpe:/a:centos:centos:openscap-utils, p-cpe:/a:centos:centos:openscap, p-cpe:/a:redhat:enterprise_linux:openscap-containers, p-cpe:/a:redhat:enterprise_linux:openscap-devel, p-cpe:/a:redhat:enterprise_linux:openscap-engine-sce-devel, p-cpe:/a:redhat:enterprise_linux:openscap-engine-sce, p-cpe:/a:redhat:enterprise_linux:openscap-extra-probes, p-cpe:/a:redhat:enterprise_linux:openscap-python3, p-cpe:/a:redhat:enterprise_linux:openscap-python, p-cpe:/a:redhat:enterprise_linux:openscap-scanner, p-cpe:/a:redhat:enterprise_linux:openscap-selinux, p-cpe:/a:redhat:enterprise_linux:openscap-utils, p-cpe:/a:redhat:enterprise_linux:openscap

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: 10/21/2026

Reference Information

CVE: CVE-2026-85518