P4Verified

CVE-2025-66456: elysia from 1.4.0 (inclusive), before 1.4.17 (exclusive), >= 1.4.0, < 1.4.17

CVE-2025-66456. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.0056 (percentile 0.45108), scored 13-Oct-2026.

Affected technology

elysia · from 1.4.0 (inclusive), before 1.4.17 (exclusive)
elysiajs

elysia · >= 1.4.0, < 1.4.17
elysiajs

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 9.1/10) rates confidentiality and integrity impact as high; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 15-Oct-2026 01:10 UTC

CWE: CWE-1321
CCR priority: 39.3 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.0056 · percentile 0.45108 · 2026-10-13
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-15 01:07:31.726917+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-66456.html