CVE-2025-27209: nodejs vulnerability
nodejs · node
Vendor fix available · Affected: nodejs · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 69% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- nodejs · nodefrom 24.0.0 before 24.4.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- nodejs
- Published
- July 2025
- Bounty reports
- 1 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2025-27209
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- HashDoS in V8Node.js · 2025 · high severityValid
CoverageNo articles yet
No CyberSIXT article names CVE-2025-27209 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.