Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-24733

high Nessus Plugin ID 299445

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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.

 - Improper Input Validation vulnerability in Apache Tomcat. Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112. Older, EOL versions are also affected. Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
 (CVE-2026-24733)

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-2026-24733

https://ubuntu.com/security/CVE-2026-24733

Plugin Details

Severity: High

ID: 299445

File Name: unpatched_CVE_2026_24733.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 2/18/2026

Updated: 2/27/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2026-24733

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:tomcat-servlet-6.0-api, p-cpe:/a:canonical:ubuntu_linux:tomcat7, p-cpe:/a:centos:centos:pki-servlet-engine, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:redhat:enterprise_linux:tomcat, p-cpe:/a:centos:centos:tomcat-jsp-2.3-api, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:tomcat-el-3.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-el-5.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat9-docs-webapp, p-cpe:/a:canonical:ubuntu_linux:tomcat10, p-cpe:/a:centos:centos:tomcat9-docs-webapp, p-cpe:/a:centos:centos:tomcat9-webapps, p-cpe:/a:centos:centos:tomcat-servlet-4.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-jsp-3.1-api, p-cpe:/a:redhat:enterprise_linux:tomcat-jsp-2.3-api, p-cpe:/a:redhat:enterprise_linux:tomcat9, p-cpe:/a:redhat:enterprise_linux:tomcat-lib, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:centos:centos:tomcat9-admin-webapps, p-cpe:/a:redhat:enterprise_linux:tomcat9-webapps, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:tomcat-docs-webapp, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:tomcat9-admin-webapps, p-cpe:/a:canonical:ubuntu_linux:tomcat9, p-cpe:/a:centos:centos:tomcat-lib, p-cpe:/a:centos:centos:tomcat9-jsp-2.3-api, p-cpe:/a:centos:centos:tomcat-el-3.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-docs-webapp, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:tomcat9-jsp-2.3-api, p-cpe:/a:centos:centos:tomcat-admin-webapps, p-cpe:/a:redhat:enterprise_linux:tomcat-admin-webapps, p-cpe:/a:canonical:ubuntu_linux:tomcat6, p-cpe:/a:centos:centos:tomcat9, p-cpe:/a:redhat:enterprise_linux:tomcat-servlet-6.0-api, p-cpe:/a:centos:centos:tomcat-jsp-3.1-api, p-cpe:/a:centos:centos:pki-servlet-4.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat-servlet-4.0-api, p-cpe:/a:centos:centos:tomcat-el-5.0-api, p-cpe:/a:centos:centos:tomcat, p-cpe:/a:centos:centos:tomcat9-servlet-4.0-api, p-cpe:/a:centos:centos:tomcat9-lib, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:redhat:enterprise_linux:pki-servlet-4.0-api, p-cpe:/a:redhat:enterprise_linux:tomcat9-lib, p-cpe:/a:redhat:enterprise_linux:tomcat9-servlet-4.0-api, p-cpe:/a:centos:centos:tomcat9-el-3.0-api, p-cpe:/a:redhat:enterprise_linux:pki-servlet-engine, p-cpe:/a:redhat:enterprise_linux:tomcat-webapps, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:tomcat-webapps, p-cpe:/a:redhat:enterprise_linux:tomcat9-el-3.0-api, p-cpe:/a:canonical:ubuntu_linux:tomcat8

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: 12/8/2025

Reference Information

CVE: CVE-2026-24733

IAVA: 2026-A-0175