CVE-2026-72673
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
Kibana has an incorrect authorization vulnerability (CWE-863) allowing unauthorized deletion of Synthetics private locations. Locations can be shared across spaces, and the deletion safeguard only checks monitors visible in the user's own space. An authenticated user with Synthetics write privilege in one space can delete a location that other spaces depend on, even without access to those spaces.
Risk Assessment
Deleting a shared location stops monitors in other spaces, leading to loss of availability monitoring. This can hide outages and violate compliance requirements.
Recommendation
Update Kibana to the patched version. Restrict permissions for managing Synthetics locations and regularly audit privileges.
Original NVD description (English source)
Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized deletion of Synthetics private locations via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Synthetics private locations can be shared with more than one space, and deleting one removes it from every space it is shared with. The safeguard that prevented the deletion of a private location still in use evaluated only the monitors visible in the requesting user's own space, so monitors that depend on the private location in other spaces were not taken into account. As a result, an authenticated Kibana user holding the Synthetics write privilege in a single space could delete a private location that other spaces still depend on, even where the user has no access to those spaces. Deleting the private location removes the shared configuration and stops the monitors in the other spaces from running, which suppresses the availability monitoring those spaces rely on.