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.
History

Mon, 21 Jul 2025 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-407
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 18 Jul 2025 23:00:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2025-07-18T22:54:27.205Z

Updated: 2025-07-21T18:38:55.180Z

Reserved: 2025-02-20T01:00:01.798Z

Link: CVE-2025-27209

cve-icon Vulnrichment

Updated: 2025-07-21T17:16:08.656Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-18T23:15:23.190

Modified: 2025-07-22T13:06:07.260

Link: CVE-2025-27209

cve-icon Redhat

No data.