CVE-2026-72673
Received Received - Intake

Incorrect Authorization in Kibana Allows Unauthorized Deletion of Synthetics Private Locations

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Elastic

Description
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.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-14
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-72673
EUVD
EUVD-2026-58260

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
elastic kibana *
elastic kibana to 8.19.20 (exc)
elastic kibana to 9.4.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

CVE-2026-72673 is an Incorrect Authorization vulnerability in Kibana where an authenticated user with Synthetics write privilege in one space can delete a private location shared across multiple spaces, even without access to those spaces. The safeguard only checks monitors in the user's space, ignoring dependencies elsewhere.

Detection Guidance

Monitor for unexplained deletions of Synthetics private locations or sudden halting of monitors without changes. Check Kibana logs for unauthorized deletion events or access patterns inconsistent with normal user behavior.

Impact Analysis

This vulnerability allows unauthorized deletion of shared Synthetics private locations, causing monitors in other spaces to stop running. This disrupts availability monitoring those spaces rely on, potentially leading to undetected outages or performance issues.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by enabling unauthorized deletion of Synthetics private locations, potentially disrupting availability monitoring systems that track system performance and uptime. Such disruptions may lead to undetected outages or failures, violating data integrity and availability requirements under these regulations.

Mitigation Strategies

Upgrade Kibana to versions 8.19.20 or 9.4.4 or later. Avoid sharing private locations across spaces and restrict Synthetics write privileges to trusted users with access to all relevant spaces.

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