Linux Distros Unpatched Vulnerability : CVE-2026-22741

low Nessus Plugin ID 312040

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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.

- Spring MVC and WebFlux applications are vulnerable to cache poisoning when resolving static resources.
More precisely, an application can be vulnerable when all the following are true: * the application is using Spring MVC or Spring WebFlux * the application is configuring the resource chain support https://docs.spring.io/spring-framework/reference/web/webmvc/mvc-config/static-resources.html#page-title with caching enabled * the application adds support for encoded resources resolution * the resource cache must be empty when the attacker has access to the application When all the conditions above are met, the attacker can send malicious requests and poison the resource cache with resources using the wrong encoding. This can cause a denial of service by breaking the front-end application for clients.
(CVE-2026-22741)

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: Low

ID: 312040

File Name: unpatched_CVE_2026_22741.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 5/4/2026

Updated: 5/4/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-22741

CVSS v3

Risk Factor: Low

Base Score: 3.1

Temporal Score: 2.9

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:pki-resteasy-jackson2-provider, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:pki-resteasy, p-cpe:/a:redhat:enterprise_linux:log4j, p-cpe:/a:centos:centos:log4j-slf4j, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-client, p-cpe:/a:centos:centos:pki-resteasy-core, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-servlet-initializer, p-cpe:/a:redhat:enterprise_linux:resteasy-javadoc, p-cpe:/a:redhat:enterprise_linux:log4j-web, p-cpe:/a:centos:centos:pki-resteasy, p-cpe:/a:centos:centos:resteasy, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:pki-resteasy-core, p-cpe:/a:centos:centos:log4j-jcl, p-cpe:/a:redhat:enterprise_linux:log4j-slf4j, p-cpe:/a:redhat:enterprise_linux:log4j-jcl, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:resteasy, p-cpe:/a:centos:centos:pki-resteasy-jackson2-provider, p-cpe:/a:centos:centos:resteasy-javadoc, p-cpe:/a:centos:centos:log4j-web, p-cpe:/a:centos:centos:pki-resteasy-servlet-initializer, p-cpe:/a:centos:centos:pki-resteasy-client, p-cpe:/a:centos:centos:log4j

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: 4/29/2026

Reference Information

CVE: CVE-2026-22741

Detections

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