Homepage

Reversible One-Way Hash The advisory has been revoked - it doesn't affect any version of package nodejs24-devel  (opens in a new tab)

Threat Intelligence

EPSS
0.04% (12th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Reversible One-Way Hash vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL10-NODEJS24DEVEL-15888324
  • published4 Apr 2026
  • disclosed30 Mar 2026
Report a new vulnerability Found a mistake?

Introduced: 30 Mar 2026

CVE-2026-21717  (opens in a new tab)
CWE-328  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs24-devel package and not the nodejs24-devel package as distributed by RHEL.

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the Node.js process.

The most common trigger is any endpoint that calls JSON.parse() on attacker-controlled input, as JSON parsing automatically internalizes short strings into the affected hash table.

This vulnerability affects 20.x, 22.x, 24.x, and 25.x.