CVE-2026-18420

Katalog CVE

CVSS 8.8 · High EPSS 0,66%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). Skor CVSS 3.1 8.8 (High) menurut CNA.

Deskripsi (NVD)

Improper input validation in the Time Series Visual Builder (TSVB) plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enables remote code execution.  To remediate this issue, users should upgrade to OpenSearch Dashboards 3.8 or later.

Rincian

Terbit di NVD

20 Agustus 2026

Terakhir diubah

25 Agustus 2026

Status NVD

Awaiting Analysis

CVSS 3.1

8.8 (High), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

EPSS (30 hari)

0,66% peluang dieksploitasi; lebih tinggi dari 50,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://aws.amazon.com/security/security-bulletins/2026-085-aws/
• https://github.com/opensearch-project/OpenSearch-Dashboards/releases/tag/3.8.0
• https://github.com/opensearch-project/OpenSearch-Dashboards/security/advisories/GHSA-xmqx-xq2p-8jq2