Elastic Kibana up to 8.19.15/9.3.4/9.4.1 Configuration input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Elastic Kibana up to 8.19.15/9.3.4/9.4.1. It has been classified as problematic. The impacted element is an unknown function of the component Configuration Handler. Performing a manipulation results in input validation. This vulnerability is known as CVE-2026-49095. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Elastic Kibana up to 8.19.15/9.3.4/9.4.1. It has been classified as problematic. This affects an unknown code block of the component Configuration Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation. An authenticated user with Fleet management privileges can manipulate agent policy configuration by injecting values into a configuration override mechanism that is not adequately validated. An attacker can cause Elastic Agents to be issued API keys with elevated Elasticsearch privileges, potentially granting unauthorized read and write access to sensitive Elasticsearch security indices beyond what is intended for the Fleet management role.

The advisory is shared at discuss.elastic.co. This vulnerability is uniquely identified as CVE-2026-49095 since 05/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/22/2026).

The vulnerability scanner Nessus provides a plugin with the ID 318724 (Kibana 8.x < 8.19.16 / 9.0.x < 9.3.5 / 9.4.x < 9.4.2 Multiple Vulnerabilities (ESA-2026-35 / ESA-2026-38)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (318724), EUVD (EUVD-2026-33033) and CERT Bund (WID-SEC-2026-1734). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source Kibana

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (elastic): 🔒

CVSSv2info

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

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 318724
Nessus Name: Kibana 8.x < 8.19.16 / 9.0.x < 9.3.5 / 9.4.x < 9.4.2 Multiple Vulnerabilities (ESA-2026-35 / ESA-2026-38)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/27/2026 CVE reserved
05/28/2026 +1 days Advisory disclosed
05/28/2026 +0 days VulDB entry created
07/22/2026 +55 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-49095 (🔒)
GCVE (CVE): GCVE-0-2026-49095
GCVE (VulDB): GCVE-100-366945
EUVD: 🔒
CERT Bund: WID-SEC-2026-1734 - Kibana: Mehrere Schwachstellen

Entryinfo

Created: 05/28/2026 23:06
Updated: 07/22/2026 12:43
Changes: 05/28/2026 23:06 (61), 05/29/2026 00:07 (1), 05/29/2026 18:33 (7), 06/05/2026 21:23 (2), 07/22/2026 12:43 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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