AUGUST 4, 2026
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Case File

CVE-2025-27209

HIGH · CVSS 7.5 EPSS 0.77%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-07-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.

CVE
CVE-2025-27209
Severity
HIGH
CVSS
7.5
EPSS
0.77%

Original NVD Description

The V8 release used in Node.js v24.0.0 has changed how string hashes are computed using rapidhash. This implementation re-introduces the HashDoS vulnerability as an attacker who can control the strings to be hashed can generate many hash collisions - an attacker can generate collisions even without knowing the hash-seed. * This vulnerability affects Node.js v24.x users.