CVE-2026-42400

mediumpriority · track · 0EPSS 0.005 · 40 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (40th) EPSS

CVSS 6.5 · medium

Is it mine?

22 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-24

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security@elastic.coexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400US

affected products (22)

Products and version ranges known to be affected.

Open Source Kibana <8.19.16all versionscert_bundDE
Open Source Kibana <9.3.5all versionscert_bundDE
Open Source Kibana <9.4.1all versionscert_bundDE
Open Source Kibana< 8.19.16cert_bundDE
Open Source Kibana< 9.3.5cert_bundDE
Open Source Kibana< 9.4.1cert_bundDE
Elastic Kibana≤ 8.0.0 ≤8.19.15enisa_euvdEU
Elastic Kibana≤ 9.4.0 ≤9.4.1enisa_euvdEU
Elastic Kibana≤ 9.0.0 ≤9.3.4enisa_euvdEU
Elastic NV Kibana8.0.0 → 8.19.16fstec_bduRU
Elastic NV Kibana9.0.0 → 9.3.5fstec_bduRU
Elastic NV Kibana9.4.0 → 9.4.2fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU
elastic kibana8.0.0 → 8.19.16nvdUScpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
elastic kibana9.0.0 → 9.3.5nvdUScpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
elastic kibana9.4.0 → 9.4.2nvdUScpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
Bitnami elk8.0.0 → 8.19.16osvUSpkg:bitnami/elk
Bitnami elk9.0.0 → 9.3.5osvUSpkg:bitnami/elk
Bitnami elk9.4.0 → 9.4.2osvUSpkg:bitnami/elk
Bitnami kibana8.0.0 → 8.19.16osvUSpkg:bitnami/kibana

showing 20 of 22

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1734Kibana: Mehrere SchwachstellenDeutsch2026-05-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um einen Cross-Site Scripting Angriff durchzuführen.
BIT-elk-2026-42400Uncontrolled Resource Consumption in Kibana Leading to Denial of Service2026-06-01vendor · osvUS
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.
BIT-kibana-2026-42400Uncontrolled Resource Consumption in Kibana Leading to Denial of Service2026-06-01vendor · osvUS
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

published 2026-05-28modified 2026-09-25

references (4)

External citations — patches, advisories, analysis.

scry

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