CVE-2026-24096 PUBLISHED

Insufficient permission validation on multiple REST API Quick Setup endpoints

Assigner: Checkmk
Reserved: 21.01.2026 Published: 01.04.2026 Updated: 01.04.2026

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

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Checkmk GmbH
Product	Checkmk
Versions	Default: unaffected affected from 2.5.0b1 to 2.5.0b2 (excl.) affected from 2.4.0 to 2.4.0p25 (excl.)

Credits

PS Positive Security GmbH reporter

References

https://checkmk.com/werk/18989

Problem Types

CWE-280: Improper Handling of Insufficient Permissions or Privileges CWE

Impacts

CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels