UpHeron
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Servers and applications

CVE-2026-56143

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted request that causes excessive memory consumption, which may render the affected node unavailable.

Severity
Medium 4.9
Published
1 Sept 2026
Last changed
4 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.19.20, 9.3.0
Sources
NVD

Affected software

SoftwareAffected versions
ElasticsearchServers and applications · cpe:a:elastic:elasticsearch
  • From 8.0.0 before 8.19.20
  • From 9.0.0 before 9.3.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-56143
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-56143