UpHeron
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Servers and applications

CVE-2026-63144

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via a specially crafted search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that triggers unbounded recursive processing within the Elasticsearch query evaluation component, causing a fatal error that terminates the affected node. In single-node…

Severity
Medium 6.5
Published
21 Jul 2026
Last changed
3 Aug 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.19.19, 9.3.8, 9.4.4
Sources
NVD

Affected software

SoftwareAffected versions
ElasticsearchServers and applications · cpe:a:elastic:elasticsearch
  • From 8.19.0 before 8.19.19
  • From 9.3.0 before 9.3.8
  • From 9.4.0 before 9.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-63144
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-63144