Linux Distros Unpatched Vulnerability : CVE-2026-58015

high Nessus Plugin ID 324018

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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 GLib. The D-Bus client-side implementation of the DBUS_COOKIE_SHA1 SASL authentication mechanism does not validate the cookie_context parameter received from the server. A malicious D-Bus server can supply a cookie_context containing path traversal sequences, causing the client to read an arbitrary file and exfiltrate sensitive data by verifying guessed file contents against a generated hash.
(CVE-2026-58015)

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

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 324018

File Name: unpatched_CVE_2026_58015.nasl

Version: 1.6

Type: Local

Agent: unix

Family: Misc.

Published: 7/1/2026

Updated: 7/20/2026

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

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

CVSS Score Source: CVE-2026-58015

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:glib2-doc, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:mingw64-glib2-static, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:debian:debian_linux:glib2.0, p-cpe:/a:redhat:enterprise_linux:glib2-tests, p-cpe:/a:redhat:enterprise_linux:glib2-devel, p-cpe:/a:centos:centos:glib2, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:mingw32-glib2-static, p-cpe:/a:centos:centos:glib2-tests, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:glib2-static, p-cpe:/a:redhat:enterprise_linux:mingw64-glib2, p-cpe:/a:centos:centos:mingw32-glib2, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:glib2-doc, p-cpe:/a:redhat:enterprise_linux:glib2-fam, p-cpe:/a:redhat:enterprise_linux:mingw32-glib2, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:glib2, p-cpe:/a:centos:centos:mingw64-glib2, p-cpe:/a:redhat:enterprise_linux:mingw-glib2, p-cpe:/a:canonical:ubuntu_linux:glib2.0, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:mingw32-glib2-static, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:glib2-static, p-cpe:/a:centos:centos:glib2-fam, p-cpe:/a:centos:centos:mingw-glib2, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:glib2-devel, p-cpe:/a:redhat:enterprise_linux:mingw64-glib2-static

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: 6/30/2026

Reference Information

CVE: CVE-2026-58015

Detections

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