CVE-2025-27209 Affecting nodejs-24 package, versions <24.4.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-NODEJS24-13308545
- published6 Oct 2025
- disclosed18 Jul 2025
Introduced: 18 Jul 2025
CVE-2025-27209 (opens in a new tab)How to fix?
Upgrade Minimos:latest nodejs-24 to version 24.4.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nodejs-24 package and not the nodejs-24 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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
- https://www.cve.org/CVERecord?id=CVE-2025-27209
- https://github.com/advisories/GHSA-qr33-gf7m-pq45
- https://osv.dev/vulnerability/MINI-jw94-h8cm-5xr2
- https://osv.dev/vulnerability/CVE-2025-27209
- https://nodejs.org/en/blog/vulnerability/july-2025-security-releases
- http://www.openwall.com/lists/oss-security/2025/07/22/2