CVE-2026-72660: CWE-248 Uncaught Exception in Elastic Kibana
Uncaught Exception (CWE-248), resulting from Improper Input Validation (CWE-20), in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged access can cause an internal error condition in Kibana by supplying specially crafted data. The resulting error is raised on an execution path so it propagates as an uncaught exception and terminates the Kibana process. Kibana is unavailable to all users until the service is restarted, and the condition can be triggered repeatedly.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-72660) in Elastic Kibana arises from improper input validation (CWE-20) leading to an uncaught exception (CWE-248). An authenticated user with low privileges can manipulate input data to cause an internal error that propagates as an uncaught exception, terminating the Kibana process and resulting in denial of service. The affected versions explicitly include 8.0.0, 9.0.0, and 9.4.0. There is no vendor advisory or patch information available, and no known exploits in the wild have been reported.
Potential Impact
The impact is denial of service (DoS) affecting availability. The Kibana service terminates unexpectedly when the vulnerability is triggered, causing downtime until the service is manually restarted. This affects all users of the service during the downtime. No confidentiality or integrity impacts are reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for attempts to trigger this condition and restart the Kibana service if it terminates unexpectedly. Limit authenticated user access to trusted personnel to reduce risk.
CVE-2026-72660: CWE-248 Uncaught Exception in Elastic Kibana
Description
Uncaught Exception (CWE-248), resulting from Improper Input Validation (CWE-20), in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged access can cause an internal error condition in Kibana by supplying specially crafted data. The resulting error is raised on an execution path so it propagates as an uncaught exception and terminates the Kibana process. Kibana is unavailable to all users until the service is restarted, and the condition can be triggered repeatedly.
CVSS v3.1
Score 6.5medium
Affected software
pkg:github/elastic/kibanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-72660) in Elastic Kibana arises from improper input validation (CWE-20) leading to an uncaught exception (CWE-248). An authenticated user with low privileges can manipulate input data to cause an internal error that propagates as an uncaught exception, terminating the Kibana process and resulting in denial of service. The affected versions explicitly include 8.0.0, 9.0.0, and 9.4.0. There is no vendor advisory or patch information available, and no known exploits in the wild have been reported.
Potential Impact
The impact is denial of service (DoS) affecting availability. The Kibana service terminates unexpectedly when the vulnerability is triggered, causing downtime until the service is manually restarted. This affects all users of the service during the downtime. No confidentiality or integrity impacts are reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor for attempts to trigger this condition and restart the Kibana service if it terminates unexpectedly. Limit authenticated user access to trusted personnel to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-08-10T11:17:45.102Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e1a82bf8831d539b18313
Added to database: 08/13/2026, 19:26:58 UTC
Last enriched: 08/13/2026, 19:57:26 UTC
Last updated: 08/13/2026, 21:41:14 UTC
Views: 2
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