Bug 2382040 (CVE-2025-27209) - CVE-2025-27209 nodejs: Node.js Rapidhash HashDoS Vulnerability
Summary: CVE-2025-27209 nodejs: Node.js Rapidhash HashDoS Vulnerability
Keywords:
Status: NEW
Alias: CVE-2025-27209
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-18 23:01 UTC by OSIDB Bzimport
Modified: 2025-07-22 19:28 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-07-18 23:01:15 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.