Kibana Fleet Policy Injection Privilege Escalation
CVE-2026-49095 Published on May 28, 2026
Improper Input Validation in Kibana Fleet Leading to Privilege Escalation
Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation. An authenticated user with Fleet management privileges can manipulate agent policy configuration by injecting values into a configuration override mechanism that is not adequately validated. An attacker can cause Elastic Agents to be issued API keys with elevated Elasticsearch privileges, potentially granting unauthorized read and write access to sensitive Elasticsearch security indices beyond what is intended for the Fleet management role.
Vulnerability Analysis
CVE-2026-49095 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Products Associated with CVE-2026-49095
Want to know whenever a new CVE is published for Elastic Kibana? stack.watch will email you.
Affected Versions
Elastic Kibana:- Version 9.0.0, <= 9.3.4 is affected.
- Version 9.4.0, <= 9.4.1 is affected.
- Version 8.0.0, <= 8.19.15 is affected.