CVE-2026-56145

mediumpriority · track · 0EPSS 0.005 · 40 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (40th) EPSS

CVSS 6.5 · medium

Is it mine?

15 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-23

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user with permission to execute EQL sequence queries against an index they control can send a specially crafted query that triggers excessive memory consumption, causing the Elasticsearch node to crash.

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

v3.16.5mediumCVSS: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-400US

affected products (15)

Products and version ranges known to be affected.

Open Source Elasticsearch <8.19.19all versionscert_bundDE
Open Source Elasticsearch <9.3.8all versionscert_bundDE
Open Source Elasticsearch <9.4.4all versionscert_bundDE
Open Source Elasticsearch< 8.19.19cert_bundDE
Open Source Elasticsearch< 9.3.8cert_bundDE
Open Source Elasticsearch< 9.4.4cert_bundDE
Elastic Elasticsearch≤ 9.4.0 ≤9.4.3enisa_euvdEU
Elastic Elasticsearch≤ 9.0.0 ≤9.3.6enisa_euvdEU
Elastic Elasticsearch≤ 8.0.0 ≤8.19.17enisa_euvdEU
elastic elasticsearch8.0.0 → 8.19.18nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.0.0 → 9.3.7nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.4.0 → 9.4.4nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
Bitnami elasticsearch8.0.0 → 8.19.18osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.0.0 → 9.3.7osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.4.0 → 9.4.4osvUSpkg:bitnami/elasticsearch

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2457Elasticsearch: Mehrere Schwachstellen ermöglichen DoS und die Offenlegung von InformationenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Elasticsearch ausnutzen, um einen Denial of Service Angriff durchzuführen und vertrauliche Informationen offenzulegen.
BIT-elasticsearch-2026-56145Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service2026-07-28vendor · osvUS
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user with permission to execute EQL sequence queries against an index they control can send a specially crafted query that triggers excessive memory consumption, causing the Elasticsearch node to crash.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-07-21modified 2026-08-07

references (3)

External citations — patches, advisories, analysis.

scry

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