CVE-2026-72678

Katalog CVE

CVSS 6.5 · Medium EPSS 0,47%

Kerentanan Memory Allocation with Excessive Size Value pada elasticsearch. Skor CVSS 3.1 6.5 (Medium) menurut elastic.co.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

13 Agustus 2026

Terakhir diubah

1 September 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber elastic.co
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-789: Memory Allocation with Excessive Size Value

EPSS (30 hari)

0,47% peluang dieksploitasi; lebih tinggi dari 39,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-80/389507 advisory vendor