CVE-2026-49088: CWE-532 Insertion of Sensitive Information into Log File in Elastic Kibana
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.
AI Analysis
Technical Summary
This vulnerability (CWE-532) in Elastic Kibana involves the insertion of sensitive information into log files when the optional APM instrumentation feature is enabled. Specifically, sensitive request header values may be logged and thus exposed to anyone with access to the application logs. The vulnerability affects Kibana versions 8.0.0, 8.19.0, 9.0.0, and 9.1.0. The CVSS 3.1 base score is 4.4 (medium severity), reflecting network attack vector, high attack complexity, and the requirement for high privileges. There is no vendor advisory or patch available at this time, and no known exploits in the wild have been reported.
Potential Impact
The impact is information disclosure of sensitive request header values through application logs when APM instrumentation is enabled. This could expose sensitive data to operators or others with access to logs. There is no indication of integrity or availability impact. The vulnerability requires high privileges to exploit and has a medium severity rating.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, organizations should consider disabling the optional APM instrumentation feature if sensitive header logging is a concern and restrict access to application logs to trusted personnel only.
CVE-2026-49088: CWE-532 Insertion of Sensitive Information into Log File in Elastic Kibana
Description
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.
CVSS v3.1
Score 4.4medium
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 (CWE-532) in Elastic Kibana involves the insertion of sensitive information into log files when the optional APM instrumentation feature is enabled. Specifically, sensitive request header values may be logged and thus exposed to anyone with access to the application logs. The vulnerability affects Kibana versions 8.0.0, 8.19.0, 9.0.0, and 9.1.0. The CVSS 3.1 base score is 4.4 (medium severity), reflecting network attack vector, high attack complexity, and the requirement for high privileges. There is no vendor advisory or patch available at this time, and no known exploits in the wild have been reported.
Potential Impact
The impact is information disclosure of sensitive request header values through application logs when APM instrumentation is enabled. This could expose sensitive data to operators or others with access to logs. There is no indication of integrity or availability impact. The vulnerability requires high privileges to exploit and has a medium severity rating.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, organizations should consider disabling the optional APM instrumentation feature if sensitive header logging is a concern and restrict access to application logs to trusted personnel only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-05-27T11:31:33.582Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a45492b27e9c79719d62115
Added to database: 07/01/2026, 17:06:51 UTC
Last enriched: 07/01/2026, 17:23:03 UTC
Last updated: 07/01/2026, 18:44:14 UTC
Views: 3
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