CVE-2025-27209 — nodejs / node

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
nodejs / node	affected 24.0.0 before 24.4.1

CWE

No CWE identifiers supplied.

References

https://nodejs.org/en/blog/vulnerability/july-2025-security-releases

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2025/07/22/2