UpHeron
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Servers and applications

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.

Severity
Medium 6.5
Published
1 Jul 2026
Last changed
2 Jul 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.17.24, 8.15.0
Sources
NVD

Affected software

SoftwareAffected versions
ElasticsearchServers and applications · cpe:a:elastic:elasticsearch
  • From 7.0.0 before 7.17.24
  • From 8.0.0 before 8.15.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-49090
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-49090