Elastic Kibana up to 8.19.10/9.2.4 Timelion resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Elastic Kibana up to 8.19.10/9.2.4 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Timelion. The manipulation leads to resource consumption. This vulnerability is traded as CVE-2026-26937. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Elastic Kibana up to 8.19.10/9.2.4. It has been rated as problematic. This issue affects an unknown part of the component Timelion. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

Uncontrolled Resource Consumption (CWE-400) in the Timelion component in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

The advisory is shared at discuss.elastic.co. The identification of this vulnerability is CVE-2026-26937 since 02/16/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

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 vulnerability database at CERT Bund (WID-SEC-2026-0545). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 6.1
VulDB Meta Temp Score: 6.1

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

NVD Base Score: 7.5
NVD Vector: 🔒

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: Resource consumption
CWE: CWE-400 / CWE-404
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
02/26/2026 +10 days Advisory disclosed
02/26/2026 +0 days VulDB entry created
03/03/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-26937 (🔒)
GCVE (CVE): GCVE-0-2026-26937
GCVE (VulDB): GCVE-100-348029
CERT Bund: WID-SEC-2026-0545 - Kibana: Mehrere Schwachstellen ermöglichen Denial of Service und Offenlegung von Informationen

Entryinfo

Created: 02/26/2026 19:33
Updated: 03/03/2026 11:39
Changes: 02/26/2026 19:33 (62), 02/27/2026 19:01 (7), 03/03/2026 11:39 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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