Elastic Kibana up to 9.3.6/9.4.3 Entity Analytics endpoint allocation of resources

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.56

Summaryinfo

A vulnerability categorized as problematic has been discovered in Elastic Kibana up to 9.3.6/9.4.3. The affected element is an unknown function of the component Entity Analytics endpoint. Executing a manipulation can lead to allocation of resources. This vulnerability is handled as CVE-2026-42397. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Elastic Kibana up to 9.3.6/9.4.3 and classified as problematic. This vulnerability affects an unknown functionality of the component Entity Analytics endpoint. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.

The advisory is available at discuss.elastic.co. This vulnerability was named CVE-2026-42397 since 04/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 9.3.7 or 9.4.4 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: Kibana 9.3.7/9.4.4

Timelineinfo

04/27/2026 CVE reserved
07/21/2026 +85 days Advisory disclosed
07/21/2026 +0 days VulDB entry created
07/21/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-42397 (🔒)
GCVE (CVE): GCVE-0-2026-42397
GCVE (VulDB): GCVE-100-381046

Entryinfo

Created: 07/21/2026 22:26
Changes: 07/21/2026 22:26 (53)
Complete: 🔍
Cache ID: 216::103

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