CVE-2026-63263

mediumpriority · track · 0EPSS 0.005 · 41 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (41st) 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 2026-10-27

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Exponential Data Expansion (CAPEC-197). An authenticated user may submit a specially crafted query to the ES|QL engine that causes exponential CPU consumption during query evaluation. Because the resource exhaustion persists beyond query completion, repeated requests can fully exhaust the available query worker resources, rendering ES|QL queries unavailable until the node is restarted.

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≤ 8.0.0 ≤8.19.18enisa_euvdEU
Elastic Elasticsearch≤ 9.0.0 ≤9.3.7enisa_euvdEU
elastic elasticsearch8.0.0 → 8.19.19nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.0.0 → 9.3.8nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.4.0 → 9.4.4nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
Bitnami elasticsearch8.0.0 → 8.19.19osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.0.0 → 9.3.8osvUSpkg: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-2026-63263Uncontrolled 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 Exponential Data Expansion (CAPEC-197). An authenticated user may submit a specially crafted query to the ES|QL engine that causes exponential CPU consumption during query evaluation. Because the resource exhaustion persists beyond query completion, repeated requests can fully exhaust the available query worker resources, rendering ES|QL queries unavailable until the node is restarted.

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 2026-07-22modified 2026-10-24

references (3)

External citations — patches, advisories, analysis.

scry

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