CVE-2026-49088

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 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::

History

02 Jul 2026, 17:52

Type	Values Removed	Values Added
References	~~() https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50 -~~	() https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50 - Vendor Advisory, Mitigation
CPE		cpe:2.3:a:elastic:kibana::::::::
First Time		Elastic kibana Elastic

01 Jul 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 17:16

Updated : 2026-07-02 17:52

NVD link : CVE-2026-49088

Mitre link : CVE-2026-49088

CVE.ORG link : CVE-2026-49088

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-532

Insertion of Sensitive Information into Log File

{"id": "CVE-2026-49088", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49088", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-01T17:19:40.665767Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@elastic.co", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 0.7}]}, "affected": [{"source": "security@elastic.co", "affectedData": [{"vendor": "Elastic", "product": "Kibana", "versions": [{"status": "affected", "version": "8.0.0", "versionType": "semver", "lessThanOrEqual": "8.18.8"}, {"status": "affected", "version": "9.1.0", "versionType": "semver", "lessThanOrEqual": "9.1.5"}, {"status": "affected", "version": "9.0.0", "versionType": "semver", "lessThanOrEqual": "9.0.7"}, {"status": "affected", "version": "8.19.0", "versionType": "semver", "lessThanOrEqual": "8.19.5"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-01T17:16:35.807", "references": [{"url": "https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50", "tags": ["Vendor Advisory", "Mitigation"], "source": "security@elastic.co"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@elastic.co", "description": [{"lang": "en", "value": "CWE-532"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-02T17:52:31.750", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C5F75DB5-0F27-44B3-9C94-8541677346E1", "versionEndExcluding": "8.18.9", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C99F0C5B-1E48-40FB-AF72-59D86CEC45B3", "versionEndExcluding": "8.19.6", "versionStartIncluding": "8.19.0"}, {"criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5D3776F-14E6-48FF-9D0B-67A772CD2D98", "versionEndExcluding": "9.0.8", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D738E5D-7D73-493B-A13F-BBDF4655BC88", "versionEndExcluding": "9.1.6", "versionStartIncluding": "9.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@elastic.co"}