UpHeron
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Servers and applications

CVE-2026-103005

Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large `description` field are created and subsequently accessed, exhausting available…

Severity
Medium 6.5
Published
6 Oct 2026
Last changed
9 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.19.23, 9.4.8, 9.5.5
Sources
NVD

Affected software

SoftwareAffected versions
ElasticsearchServers and applications · cpe:a:elastic:elasticsearch
  • From 8.12.0 before 8.19.23
  • From 9.0.0 up to 9.3.8
  • From 9.4.0 before 9.4.8
  • From 9.5.0 before 9.5.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-103005
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-103005