CVE-2026-102409 in Elasticsearch

Summary

by MITRE • 10/06/2026

Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).

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• Responsible: Elastic
• Reservation: 09/29/2026
• Disclosure: 10/06/2026
• Moderation: accepted
• Entry: VDB-414481
• CPE: 20261006
• CWE: CWE-674 (confirmed)
• CVSS: 6.5 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-102409
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102409
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-102409/