CVE-2025-27209

HIGH

Node.js <24.0.0 - DoS

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0005
EPSS Percentile 14.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-407
Status published
Products (1)
nodejs/node 24.0.0 - 24.4.1
Published Jul 18, 2025
Tracked Since Feb 18, 2026