Patchlage

CVE-2026-72678

CVE CVE-2026-72678EUVD EUVD-2026-58252Published 2026-08-13T19:11:02.000ZLast changed 2026-08-13T20:34:20.000ZCVSS 6.5

What the advisory describes

Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges can submit a single small crafted request to a product API endpoint that causes the node to attempt an excessively large allocation. The resulting memory exhaustion raises a fatal error that terminates the Elasticsearch node process, causing a denial of service for the affected node and degrading cluster health. The defect is not volumetric, so a single request is sufficient regardless of the heap size configured on the target node.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

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Carried in the product catalogue

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