CVE-2026-49090 — MEDIUM (6.5)

Q: How severe is CVE-2026-49090?

CVE-2026-49090 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-49090?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Elasticsearch.

Vulnerability Description

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 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Elastic	Elasticsearch	>= 7.0.0, < 7.17.24

Related Weaknesses (CWE)

CWE-400

References

https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-20Vendor Advisory

FAQ

What is CVE-2026-49090?

CVE-2026-49090 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 tha...

How severe is CVE-2026-49090?

CVE-2026-49090 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-49090?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Elasticsearch.