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NTAP-20261009-0003 — CVE-2026-72638 Elasticsearch Vulnerability in NetApp Products

Published 2026-10-09 · Updated 2026-10-09 · Status: Interim · Exploitation: Public · Severity: MEDIUM 6.5 · ONTAP affected: No — other NetApp product

Official advisory: NTAP-20261009-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Brocade SAN firmware | other NetApp product | highest CVSS: 6.5

CVEs in this advisory

CVE-2026-72638 — MEDIUM · CVSS 6.5 · site index

What the CVE records say

CVE-2026-72638 — Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

Affected products

Brocade SAN Navigator (SANnav)

References

https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-security-update-esa-2026-119/389498 ↗

What to do

Compare your installed product and version against the affected list above and the official advisory's affected-versions table.
Apply the fixed release named in the official advisory, or the documented workaround if no fix ships yet.
Limit management-plane exposure (BMC/management interfaces, web UIs, SNMP) until patched.
Track follow-ups in the site CVE index and the security RSS feed.