CVE-2026-24096: Insufficient permission validation on multiple REST API Quick Setup endpoints

Published Apr 1, 2026
·
Updated

Insufficient permission validation on multiple REST API Quick Setup endpoints in Checkmk 2.5.0 (beta) before version 2.5.0b2 and 2.4.0 before version 2.4.0p25 allows low-privileged users to perform unauthorized actions or obtain sensitive information

Affected Software

33 affected components
Checkmk Checkmk<2.5.0b2, <2.4.0p25
Checkmk Checkmk=2.4.0
Checkmk Checkmk=2.4.0-b1
Checkmk Checkmk=2.4.0-b2
Checkmk Checkmk=2.4.0-b3
Checkmk Checkmk=2.4.0-b4
Checkmk Checkmk=2.4.0-b5
Checkmk Checkmk=2.4.0-b6
Checkmk Checkmk=2.4.0-p1
Checkmk Checkmk=2.4.0-p10
Checkmk Checkmk=2.4.0-p11
Checkmk Checkmk=2.4.0-p12
Checkmk Checkmk=2.4.0-p13
Checkmk Checkmk=2.4.0-p14
Checkmk Checkmk=2.4.0-p15
Checkmk Checkmk=2.4.0-p16
Checkmk Checkmk=2.4.0-p17
Checkmk Checkmk=2.4.0-p18
Checkmk Checkmk=2.4.0-p19
Checkmk Checkmk=2.4.0-p2
Checkmk Checkmk=2.4.0-p20
Checkmk Checkmk=2.4.0-p21
Checkmk Checkmk=2.4.0-p22
Checkmk Checkmk=2.4.0-p23
Checkmk Checkmk=2.4.0-p24
Checkmk Checkmk=2.4.0-p3
Checkmk Checkmk=2.4.0-p4
Checkmk Checkmk=2.4.0-p5
Checkmk Checkmk=2.4.0-p6
Checkmk Checkmk=2.4.0-p7
Checkmk Checkmk=2.4.0-p8
Checkmk Checkmk=2.4.0-p9
Checkmk Checkmk=2.5.0-b1

Event History

Apr 1, 2026
CVE Published
via MITRE·10:07 AM
Data Sourced
via MITRE·10:07 AM
DescriptionWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-24096?

CVE-2026-24096 is considered a critical vulnerability due to its potential to allow low-privileged users to perform unauthorized actions.

2

How do I fix CVE-2026-24096?

To mitigate CVE-2026-24096, it is recommended to upgrade Checkmk to version 2.5.0b2 or later, or 2.4.0p25 or later.

3

What are the affected versions for CVE-2026-24096?

CVE-2026-24096 affects Checkmk versions prior to 2.5.0b2 and 2.4.0 versions before 2.4.0p25.

4

What actions can low-privileged users perform due to CVE-2026-24096?

Due to CVE-2026-24096, low-privileged users can perform unauthorized actions across multiple REST API Quick Setup endpoints.

5

Is there a workaround for CVE-2026-24096?

There is no official workaround for CVE-2026-24096, and the best course of action is to apply the appropriate updates as soon as possible.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203