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Linux Distros Unpatched Vulnerability : CVE-2026-40971

critical Nessus Plugin ID 312032

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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.

 - When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker. Affected: Spring Boot 4.0.04.0.5 (fix 4.0.6), 3.5.03.5.13 (fix 3.5.14) per vendor advisory. (CVE-2026-40971)

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-2026-40971

Plugin Details

Severity: Critical

ID: 312032

File Name: unpatched_CVE_2026_40971.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 5/4/2026

Updated: 5/15/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 8

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

CVSS Score Source: CVE-2026-40971

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: p-cpe:/a:redhat:enterprise_linux:log4j-jcl, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:log4j-web, p-cpe:/a:centos:centos:log4j-web, p-cpe:/a:centos:centos:log4j-jcl, p-cpe:/a:redhat:enterprise_linux:log4j, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:log4j, p-cpe:/a:redhat:enterprise_linux:log4j-slf4j, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:log4j-slf4j

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/27/2026

Reference Information

CVE: CVE-2026-40971