Kibana APM Logs Leak Sensitive Headers via Log Injection (CWE-532)
CVE-2026-49088 Published on July 1, 2026
Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure
Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure. When the optional application performance monitoring (APM) instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to operators with log access.
Vulnerability Analysis
CVE-2026-49088 is exploitable with network access, and requires user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Insertion of Sensitive Information into Log File
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
Products Associated with CVE-2026-49088
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Affected Versions
Elastic Kibana:- Version 8.0.0, <= 8.18.8 is affected.
- Version 9.1.0, <= 9.1.5 is affected.
- Version 9.0.0, <= 9.0.7 is affected.
- Version 8.19.0, <= 8.19.5 is affected.