How serious is CVE-2026-24097?

This vulnerability has a CVSS score of 5.3 out of 10, classified as MEDIUM severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-24097?

Yes, proof-of-concept exploit code for CVE-2026-24097 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-24097?

CVE-2026-24097 affects checkmk checkmk. Check the full CVE details for specific version information.

How do I fix CVE-2026-24097?

To remediate CVE-2026-24097, check for security patches from checkmk. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-24097

Medium

|5.3

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker who is already logged into Checkmk to find out details about existing hosts by looking at different responses from the system. It occurs because the system doesn't properly check permissions, making it easier for these users to access sensitive information.

Technical Description

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows authenticated users to enumerate existing hosts by observing different HTTP response codes in agent-receiver/register_existing endpoint, which could lead to information disclosure.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$724($500-$1K)

Vendor Response

Grade APatched in 4 days

Quick Information

Published

Mar 13, 2026

25 days ago

Last Modified

Mar 18, 2026

20 days ago

Vendor

checkmk

Product

checkmk

Related Vulnerabilities

CVE-2026-3103Medium

A low-privileged user can exploit a flaw in Checkmk to unintentionally delete important data. This issue affects specific older versions of the software, so users running those versions should update to avoid potential data loss.

CVE-2025-64999High

This vulnerability allows an attacker to inject malicious JavaScript into the monitoring logs of Checkmk, which can then be accessed through a specially crafted phishing link. To exploit this, the attacker needs to manipulate the output from a monitored host, making it essential for them to have some level of access to the system.