VDB-344999 · CVE-2026-24095 · Nessus 298452

Checkmk up to 2.2.0/2.3.0p42/2.4.0p20 Analyze Configuration Page authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Checkmk up to 2.2.0/2.3.0p42/2.4.0p20. The affected element is an unknown function of the component Analyze Configuration Page. The manipulation leads to authorization. This vulnerability is traded as CVE-2026-24095. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Checkmk up to 2.2.0/2.3.0p42/2.4.0p20. This issue affects an unknown code of the component Analyze Configuration Page. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p21, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows users with the "Use WATO" permission to access the "Analyze configuration" page by directly navigating to its URL, bypassing the intended "Access analyze configuration" permission check. If these users also have the "Make changes, perform actions" permission, they can perform unauthorized actions such as disabling checks or acknowledging results.

It is possible to read the advisory at checkmk.com. The identification of this vulnerability is CVE-2026-24095 since 01/21/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298452 (Linux Distros Unpatched Vulnerability : CVE-2026-24095), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.3.0p43 or 2.4.0p21 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (298452) and CERT Bund (WID-SEC-2026-0358). Be aware that VulDB is the high quality source for vulnerability data.

Affected

Checkmk Checkmk

Productinfo

Name

Checkmk

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 298452
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-24095

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Checkmk 2.3.0p43/2.4.0p21

Timelineinfo

01/21/2026 CVE reserved
02/09/2026 +19 days Advisory disclosed
02/09/2026 +0 days VulDB entry created
02/10/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: checkmk.com
Status: Confirmed

CVE: CVE-2026-24095 (🔒)
GCVE (CVE): GCVE-0-2026-24095
GCVE (VulDB): GCVE-100-344999
CERT Bund: WID-SEC-2026-0358 - Checkmk: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Entryinfo

Created: 02/09/2026 17:54
Updated: 02/10/2026 14:53
Changes: 02/09/2026 17:54 (65), 02/10/2026 13:53 (2), 02/10/2026 14:53 (7)
Complete: 🔍
Cache ID: 216::103