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Inefficient Algorithmic Complexity

CVE-2025-27209

High
7.5/10

Summary

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 through v24.4.0.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-407 - Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

References

Advisory Timeline

  • Published