CVE-2026-49090

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::

History

02 Jul 2026, 14:43

Type	Values Removed	Values Added
First Time		Elastic elasticsearch Elastic
References	~~() https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52 -~~	() https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52 - Vendor Advisory
CPE		cpe:2.3:a:elastic:elasticsearch::::::::

01 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 18:16

Updated : 2026-07-02 14:43

NVD link : CVE-2026-49090

Mitre link : CVE-2026-49090

CVE.ORG link : CVE-2026-49090

JSON object : View

Products Affected

elastic

elasticsearch

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2026-49090", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49090", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-01T17:56:23.912486Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@elastic.co", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@elastic.co", "affectedData": [{"vendor": "Elastic", "product": "Elasticsearch", "versions": [{"status": "affected", "version": "8.0.0", "versionType": "semver", "lessThanOrEqual": "8.14.3"}, {"status": "affected", "version": "7.0.0", "versionType": "semver", "lessThanOrEqual": "7.17.23"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-01T18:16:33.540", "references": [{"url": "https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52", "tags": ["Vendor Advisory"], "source": "security@elastic.co"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@elastic.co", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests."}], "lastModified": "2026-07-02T14:43:04.937", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E719DF2-6A28-43F9-A8C6-4882684C5AC1", "versionEndExcluding": "7.17.24", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A70215-D9F0-4CD0-B255-B0FF78B03881", "versionEndExcluding": "8.15.0", "versionStartIncluding": "8.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@elastic.co"}