Elastic Kibana up to 8.19.11/9.2.5/9.3.0 Endpoint authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Elastic Kibana up to 8.19.11/9.2.5/9.3.0 and classified as problematic. This issue affects some unknown processing of the component Endpoint. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2026-26939. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Elastic Kibana up to 8.19.11/9.2.5/9.3.0. Affected by this issue is an unknown code of the component Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity. CVE summarizes:

Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges.

The advisory is shared for download at discuss.elastic.co. This vulnerability is handled as CVE-2026-26939 since 02/16/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/24/2026).

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 EUVD (EUVD-2026-13143) and CERT Bund (WID-SEC-2026-0805). Once again VulDB remains the best source for 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: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/16/2026 CVE reserved
03/19/2026 +31 days Advisory disclosed
03/19/2026 +0 days VulDB entry created
03/24/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-26939 (🔒)
GCVE (CVE): GCVE-0-2026-26939
GCVE (VulDB): GCVE-100-351740
EUVD: 🔒
CERT Bund: WID-SEC-2026-0805 - Kibana: Mehrere Schwachstellen

Entryinfo

Created: 03/19/2026 18:56
Updated: 03/24/2026 04:32
Changes: 03/19/2026 18:56 (61), 03/19/2026 22:00 (1), 03/21/2026 05:37 (7), 03/24/2026 04:32 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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