Medium severity · published Jul 1, 2026
CVE-2026-49088
Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure
4.4
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kibana · Elastic
8.0.0 through 8.18.8; 9.1.0 through 9.1.5; 9.0.0 through 9.0.7; 8.19.0 through 8.19.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49088
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49088
Vendor Advisory
https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50
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