AUGUST 14, 2026
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Case File

CVE-2026-72687

MEDIUM · CVSS 6.5 EPSS 0.29%

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

Elasticsearch is vulnerable to a denial-of-service attack due to a flaw that allows low-privileged authenticated users to submit a specially crafted request with a forged opaque identifier. This request can lead to an out-of-memory condition, causing the affected node process to terminate. Organizations using Elasticsearch should prioritize addressing this vulnerability to prevent potential service disruptions.

CVE
CVE-2026-72687
Severity
MEDIUM
CVSS
6.5
EPSS
0.29%

Original NVD Description

A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single small request containing a forged opaque identifier. Elasticsearch decodes and deserializes the identifier before confirming that it was legitimately issued by the cluster, and a size value carried inside the identifier drives an allocation that is neither capped nor accounted for by the available memory-usage controls. The resulting out-of-memory condition is fatal and terminates the affected node process, resulting in a denial of service.