Improper Privilege Management in Kibana Fleet Leading to Over-Scoped Elastic Agent API Keys

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72631
StatePUBLISHED
Assignerelastic
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-13 20:17:23 UTC
Updated2026-08-14 05:16:59 UTC
DescriptionImproper Privilege Management (CWE-269) in Kibana Fleet can lead to privilege escalation via Privilege Escalation (CAPEC-233). An integration policy may optionally declare extra data streams that the integration writes to, which Fleet adds to the Elasticsearch API key issued to Elastic Agents enrolled in the corresponding agent policy. The resulting key allows new documents to be inserted and index mappings to be extended for specific indices. The key does not allow reading, updating, or deleting existing documents

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Problem Types: CWE-269 | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Elastic Kibana affected 9.1.0 9.4.4 semver Not specified
CNA Elastic Kibana affected 9.5.0 semver Not specified

References

ReferenceSourceLinkTags
discuss.elastic.co/t/kibana-9-4-5-9-5-1-security-update-esa-2026-128/389539 [email protected] discuss.elastic.co
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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